常熟2016–2017学年初二(下)期末考试卷
- 格式:doc
- 大小:820.00 KB
- 文档页数:6
2016-2017学年八年级下期末数学试卷(总9页)--本页仅作为文档封面,使用时请直接删除即可----内页可以根据需求调整合适字体及大小--2016-2017学年第一学期期末质量调研八年级数学试卷(满分120分,考试时间120分钟) 一、选择题(本题共12道小题,每小题3分,共36分。
)1.二次根式有意义的条件是( )A .x >-3B .x <-3C .x≥-3D .x≤-32.下列计算正确的是( ) A .2=B .=C .4﹣3=1D .3+2=53.下列命题中正确的是( )A . 有一组邻边相等的四边形是菱形B . 有一个角是直角的平行四边形是矩形C . 对角线垂直的平行四边形是正方形D . 一组对边平行的四边形是平行四边形 4.一次函数y=﹣2x+1的图象不经过下列哪个象限( ) A .第一象限 B .第二象限C .第三象限D .第四象限5.某中学规定学生的学期体育成绩满分为100分,其中课外体育占20%,期中考试成绩占30%,期末考试成绩占50%.小彤的三项成绩(百分制)次为95,90,88,则小彤这学期的体育成绩为( ) A .89 B .90 C .92 D .936.菱形的两条对角线长分别为9cm 与4cm ,则此菱形的面积为( )cm 2. A .12 B .18 C .20 D .367.关于一次函数y=﹣2x+3,下列结论正确的是( ) A . 图象过点(1,﹣1) B . 图象经过一、二、三象限 C . y 随x 的增大而增大D . 当x >时,y <08.已知直角三角形的两条边长分别是3和5,那么这个三角形的第三条边的长为( ) A .4 B .16 C .D .4或9.如图,点 E 在正方形 ABCD 的对角线 AC 上,且 EC=2 AE ,Rt△ FEG 的两直角边 EF 、 EG 分别交 BC 、 DC 于点 M 、 N .若正方形 ABCD 的边长为3,则重叠部分四边形 EMCN 的面积为( )3y x =+A. 84 cm 2B. 90 cm 2C. 126 cm 2D. 168 cm 210如图,矩形 ABCD 的对角线 AC 与 BD 相交于点 O,CE ∥BD, DE ∥AC , AD = , DE =2,则四边形 OCED 的面积为()11、如图,四边形ABCD 是菱形,8=AC ,6=DB ,AB DH ⊥于H ,则DH 等于 A .524B .512 C .5 D .412、.如图,直线233+-=x y 与x 轴,y 轴分别交于A 、B 两点,把△AOB 沿着直线AB 翻折后得到△AO´B,则点O´的坐标是( ) A .(3,3) B .(3,3) C .(2,32) D .(32,4)二、填空题(共8小题,其中11-14题每小题3分,15-18题每小题3分,共28分)ABOxy A B O O ´x y12题图第9题B CDH11.如图,分别以Rt△ABC的三边为边长,在三角形外作三个正方形,若正方形P的面积等于89,Q的面积等于25,则正方形R的边长是__________.12.有一组数据:3,a,4,6,7.它们的平均数是5,那么这组数据的方差是________.13.已知一次函数y=ax+b的图象如图,根据图中信息请写出不等式ax+b≥2的解集为.11. 13. 15 1614.若函数是一次函数,则函数解析式为.15.如图,在矩形ABCD中,AB=3,对角线AC,BD相交于点O,AE垂直平分OB于点E,则AD的长为.16、如图,在正方形ABCD中,对角线AC与BD相交于点O,E为BC上一点,CE=5,F为DE的中点.若△CEF的周长为18,则OF的长为.17. 如图,直线42+=xy与x、y轴分别交于点A、B两点,以OB为边在y轴右侧作等边△OBC,将点C向左平移,使其对应点C´恰好落在直线AB上,则点C´的坐标为 .18、.矩形OABC在平面直角坐标系中的位置如图所示,点B的坐标为(3,4),D是OA的中点,点E在AB上,当△CDE的周长最小时,点E的坐标为 .19、如图,在矩形ABCD中,AD=4,点P是直线AD上一动点,若满足△PBC是等腰三角形的点P有且只有3个,则AB的长为.()3242+-=-m xmy20、如图,在菱形ABCD 中,∠A=60°,E 、F 分别是AB 、AD 的中点,DE 、BF 相交于点G ,连接BD 、C 以下G .给出结论:①∠BGD=120°;②△BDF≌△CGB;③BG+DG=CG;④S△ADE=43AB2.其中正确的有 .三、解答题(共计62分)21.计算:(本题共3道小题,每小题3分,共9分。
2016-2017学年度第二学期期末考试八年级语文试题及答案(1-6单元)八年级下册(苏教版)2016-2017学年度第二学期期末考试八年级语文试题(1-6单元)一、积累和运用(共6小题.计l8分)1.加点字注音有误的一项是()(2分)A.鄙视(bǐ)磅礴(páng)醋栗(lì)充塞(sè)B.堕落(duò)精湛(zhàn)烨然(yè)俯瞰(kàn)C.反诘(jí)胡髭(zī)羼水(chàn)肘子(zhǒu)D.萎缩(wěi)重荷(hè)窒息(zhì)黝黑(yǒu)2、下列词语字形有误的一项是()(2分)A.颖慧积攒分岐无精打采B.鸿儒惊愕贻误气喘吁吁C.戈壁惆怅滞涩津津有味D.器皿包袱景慕纹丝不动3、下列句中加点的成语运用正确的一项是()(2分)A.这株白兰花的花期就快到了,而且能从5月持续到10月,参差不齐地开出数百朵花。
B.张家界国家森林公园云雾缭绕,群山起伏,微风轻拂,群山若隐若现,仿佛身披薄纱的仙女翩翩起舞,这惟妙惟肖的绝美风光吸引了众多游人。
C.年近九十的谢欣在文史哲的修养与悟道上已达高境,以几十年的教学经验和实景山水创作实践作为基底,创作挥毫而书之,一气呵成,自由自在。
D.互联网出现之后,其强大的交流互动能力,令广播和电视显得相形见绌,也弥补了广播、电视单向交流的不足,给人类社会带来了深刻的变化。
4.经典诗文默写(6分)(1)无丝竹之乱耳,。
(2),病树前头万木春。
(3)春蚕到死丝方尽,。
(4),出门俱是看花人。
(5),,腰白玉之环。
5.下面一段文字有两处语病。
请先将病句找出来,然后进行修改。
(4分)为了增强全民健康意识,某市积极倡导“日行一万步,吃动两平衡,健康一辈子”的生活方式,主要是解决人们膳食不平衡和运动不足,从而遏制目前慢性病发病率上升的趋势。
收到“小康看健康,健康护小康”的目标。
2016-2017学年江苏省苏州市常熟市八年级(下)期末英语试卷二、单项填空(共18小题;每小题1分,满分18分)从A、B、C、D四个选项中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.1. This is ______ public place for us to do some reading. Don't talk or laugh loudly in ______ public.A a; aB the; aC a; /D /; /2. Jenny,my classmate,is really kind ________ me.It's very kind ________ her to help me with my homework.()A to; forB to; ofC for; forD for; of3. There used to ________ a small lake near my house.At that time,I was used to ________ a walk around it after supper.()A have; takingB have; takeC be; takingD be; take4. I had much fun watching the match,________ I was not lucky enough to take a photo with my favourite player.()A andB butC soD or5. ﹣Where is your brother?﹣He ________ England and he ________ London for two weeks.()A has been to; has been inB has gone to; has been inC has been in; has been toD has gone to; has been to6. The water in the swimming pool isn't warm enough for the children ______.A to swimB to swimmingC to swim inD to swimming in7. ﹣Your father seldom has breakfast at home,________?﹣________ this morning.()A hasn't he; Yes,he doesn'tB does he; No,he hasn'tC has he; Yes,hehas D does he; No.But he did8. ﹣To cure her mother's illness,she gave up going to college,although it was ________ her own wishes.﹣Oh,I think we should learn from her.()A onB aboveC againstD before9. We are planning to go for a picnic this weekend,but it ________ the weather.()A turns onB puts onC depends onD gets on10. ﹣You should be careful when _______.﹣Yes,I will.I'd like to know when ________ to have a rest.()A driving; stoppingB driving; to stopC to drive; stoppingD to drive; to stop11. ﹣________ I play cards with you here?﹣Yes.But you ________ talk loudly.Your father is sleeping now.()A Must; can'tB May; mustC Can; mustn'tD can't; can12. ﹣How long has Li Hai ________?﹣Since two years ago.()A come to our schoolB begun to learn EnglishC joined the ReadingClub D studied in our school13. ﹣When did he go to bed yesterday?﹣________.()A By the time his mother came backB Not until his mother came backC Until his mother came backD Since his mother came back14. ﹣Have you got anything to do this afternoon,Lucy and Lily?﹣Yes.______ of us are going to the home for the elderly.()A EachB EitherC BothD All15. The boy was made ______ the streets without money in the old days.A cleanB cleanedC to cleanD be cleaned16. This novel ______ well. Get it now before it ______ out.A is sold; is soldB sells; is soldC sold; sellsD sells; sells17. ﹣Would you mind me ________ here?一 ________.The seat is for Mr.Wu.()A sitting; Of course notB to sit; No,not at allC sitting; Sorry,you'd better notD to sit; Yes,I would18. ﹣Amy scored 100points in the physics exam.﹣________.She is the most hard﹣working student in our class.()A No pain,no gainB It never rains but it poursC Don't put all your eggs in one basketD Many hands make light work三、完形填空(共1小题;每小题10分,满分10分)先通读下面的短文,掌握其大意,然后在每小题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.19. When Amy wrote her first novel in secondary school, she never dreamed that she would become a writer one day.Like many(1)_______writers on the Internet, the(2)_______woman got into this online world by chance.Three years ago, Amy worked in a medical industry(工业、行业).Her job kept her busy for six months and left her almost(3)_______to do for the rest of the year.To fill the time, she started writing novels on the Internet.Her first novel was about her neighbours and their life that she is familiar(熟悉)with.Amy has been interested in writing(4)_______she was a child.At first, she just wanted to share her novels(5)_______people she knew.Then one day an editor(编辑)of a famous website emailed her, asking her(6)_______she would like to sell the electronic(电子)copyright(授权)of one of her novels, She agreed at once and the novel was moved to the VIP section of the website.She got $1, 500 for that.Now Amy is a full﹣time(7)_______.So far her eight novels have come out online, and five of them(8)_______."The Internet made me famous and brought me(9)_______, "she said."I earn much more money now﹣about 60, 000 a year.I am pleased with what I'm doing, but there is one problem﹣that my talent(才能)might run out after five years and I'll have to return to work in the medical industry.""Before that day comes, I'll keep(10)_______for the readers with my light and close﹣to﹣everyday﹣lifewriting style, "said Amy with a smile.(1)A otherB othersC anotherD the other(2)A 28﹣year﹣oldB .28﹣years﹣oldC .28years oldD .28﹣year old(3)A somethingB anythingC everythingD nothing(4)A whenB whileC sinceD until(5)A aboutB ofC toD with(6)A thatB ifC whyD how often(7)A housewifeB editorC saleswomanD writer(8)A will printB were printingC printedD were printed(9)A successB succeedC successfulD successfully(10)A to writeB writingC writeD written四、阅读理解(共4小题;每小题6分,满分28分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑.20. As teenagers, you have many dreams.These can be very big such as winning the Nobel Prize.Or they can be small, you may just want to become one of the best students in your class.Once you find a dream, what do you do with it? Have you ever tried to make your dream real? Follow Your Heart by an Australian writer Andrew Matthews tells us that making our dreams real is life's biggest challenge(挑战).You may think you are not very good at some school subjects, or it is impossible for you to become a writer.These kinds of thoughts stop you from realizing your dream, the book says.In fact, everyone can make his dream come true.The first thing you must do is to remember what your dream is.Don't let it leave your heart.Keep telling yourself what youwant.Do this step by step, and your dream will come true because a big dream, infact, comes from many small dreams.You must also never give up your dream.There will be difficulties on the way to your dreams.But the biggest difficulty comes from yourself.You need to decide what is the most important.Studying instead of watching TV will lead to better exam results, while saving five yuan instead of buying an ice cream means you can buy a new book.As you get closer to your dream, it may change a little.This is good as you have the chance to learn more skills and find new interests.(1)What is Follow Your Heart?________A The first thing you must do to make your dream real.B The most important dream to have for teenagers.C The name of the book by Andrew Matthews.D The name of the famous Australian writer.(2)If you want to make your dream real,you should________.A remember what your dream is.B keep telling yourself what you want.C never be afraid of difficulties.D try to start with all the things above.21. Have you ever wondered(疑惑)what goes through your mind when you choose where to sit in a new classroom? Or in a waiting room, full of strangers? Or on abus? Researchers(研究者)have found out some interesting facts.Girls sit by girls and boys sit by boys.Adults sit together and young people choose another young person to sit near.But it goes further than this.We even choose to sit near someone who looks like us.People with glasses are more likely to sit near other people with glasses.People with long hair sit closer to other people with long hair.We seem to believe that people with similar habits or hobbies will share similar experiences and we are more likely to be accepted场people like ourselves, or even, we think we may be safer with people who look like us.Sometimes that's true but it's a pity if we always stay with the same people, the same group.The danger always staying in our comfort zone(舒适区)is that we just recycle the same opinions, the same tastes and the same ideas.We lose the chance to learn something new, find out interesting things, hear funny stories and find differences.When we always stay with the same people, how can we break down the barriers(隔阂)which prevent us from getting to know people with different ideas? And how can we avoid the ignorance(无知)? If you want to live in a society that opens to changes, new things and different opinions, be the cat among the pigeons(鸽子).Move out of your comfort zone.Go and sit next to someone different.And don't just sit there without any words.Say hello.Ask a question.Start a conversation.That's how we make friends.That's how we learn about people.That's how we open our minds to new ideas.That's how we live an exciting life.(1)People like staying in their comfort zone because they may________.A remain comfortable and special.B find out more interesting things.C be accepted easily and feel safe.D discover differences among themselves.(2)The sentence"Unsurprisingly,we prefer to sit closer to people like ourselves."should be put at the beginning of________A Paragraph 1.B Paragraph 2.C Paragraph 3.D Paragraph 4.(3)What is the purpose of the article?________A To tell us not to talk with strangers.B To introduce ways to learn about the world.C To explain how people communicate with foreigners.D To encourage(鼓励)us to get along with different people.22. At sunrise in a fishing port of eastern Spain(西班牙), several fishing boats have already set out.These fishermen were hunting for fish, ________ and plastic bottles.They were working for ECOAIF, a local clothing company.Since July, the company has been working with the fishermen to pick up plastic rubbish in the Mediterranean(地中海).The rubbish willbe used to make fashinable clothes."Where others see rubbish, we see raw material, "said Javier Goyeneche, president(董事长)of ECOAIF."We're showing that through recycling, we are able to create(创造)fashion."ECOAIF was founded in 2010.The Spanish company now sells its clothes made from rubbish in big cities around the world.Goyeneche said the clothes had been very popular in the US, Japan and some European countries."People really love it, "Goyeneche added."Today's customers(顾客)are showing more and more interest in environmenal protection.Besides, clothes made from rubbish are very light.They are really comfortable and cheap."(1)What may the underlined word"shrimps"be?________A A kind of seafood.B A kind of plant.C A kind of bird.D A kind of flower.(2)What is ECOAIF according to the passage?________A A famous person.B A clothing company.C A social organization.D A number of dustbins.(3)The workers in ECOAIF can make clothes________.A through recycling.B from expensive material.C from cheapmaterial. D from the rubbish on the land.(4)Which of the following is NOT the reason why people like clothes made from rubbish?________A People are interested in environmental protection.B The clothes made from rubbish are very light.C The clothes made from rubbish are very cheap.D People like all kinds of rubbish in the ocean.23. It is believed in some ways that the daughter is father's lover.But my experience has taught me in a different way.For a long time.my father has been a very vague figure(模糊形象)to me.He was a man of few words, tall but slim and nothing else.When I was in primary school.my father was never there to pick inc up, and he never came to any of my parent﹣teacher meetings.He was always busy doing projects.Iremember when I was in middle school and my head was badly hurt in a PE class.During my operation.my father was nowhere to be found.This hurt me most.At that moment, I considered my Father as a cold﹣blooded man who did not care about me at all.But things seemed different at my high school graduation ceremony.where I was chosen to represent my class and give a speech.My father, once again, told me he had a business trip in a place outside the city and would be unable to show up(露面)‘"Don't come.I will be my nervousif I see you."I told him.I remember my speech went smoothly.After the ceremony was over and I was aboutto[学.leave, I suddenly noticed a familiar(熟悉的)looking man sitting in a corner of the hall.It was my father! I was so surprised that I rushed to him with tears(眼泪)running down my face."Well done, "he said.His eyes were also filled with tears.Later, I found out that my father had managed to finish his work by staying up late, and he drove for eight hours to get back.He had been sitting in the corner because he didn't want me to see him.My father remembered every word in my speech.For much of my life.I described my father was a cold﹣blooded man who only cared about his work.But when I thought deeply about ________, it was obviously(明显地)not true.At my graduation ceremony I could feel my father's deep love.The fact is that seeing is not believing, and seeing may not be the fact if we don't perceive(感知)the world with our hearts and minds.There's no doubt that life doesn't lacklove, but sometimes our eyes have trouble seeing it.(1)Which of the following is TRUE according to the passage?________A The writer's father was in the hospital during her operation.B The writer's father attended her high school graduation ceremony.C The writer's father sometimes picked her up when she was in primary school.D The writer's father went to parent﹣teacher meetings when she was in primary school.(2)The writer rushed to her father with tears running down her face mainly because.________A she gave a speech successfully.B the graduation ceremony was over.C she was so nervous that she couldn't help crying.D she was touched to find her father cared about her.(3)What does the underlined word"this"in the last paragraph refer to(指代)?________ A That my father was always doing projects. B That my father was a cold﹣blooded man. C That my father sat in the corner of the hall. D That my father's eyes were filled with tears.(4)What's the best title of the passage?________A My busy father.B Life is full of love.C Seeing is not believing.D A wonderful speech.五、词汇检测根据句意或括号内所给提示写出句中所缺的单词,每空一个单词.(共10小题,每小题1分,满分10分)24. The teacher and students________/'mænidʒd/to run out of the building in the earthquake.25. In some foreign countries,things like glass,plastic and paper areusually________/'sepəreitid/into different groups and then recycled.26. John lives in a big family.But he doesn't know all his________/'relətivz/names.27. He is________(骄傲)to be a volunteer for the Special Olympics World Games.28. Because of colour________(盲),Jim can't join the army.29. All the Chinese celebrated the________(成功的)landing of Shenzhou﹣9spacecraft.30. There is an________(介绍)to the scientist in this magazine.31. We need more________(秘书)to help us finish the task.32. Our school is________the theatre,on the other side of the road.33. ﹣Why don't you buy a new flat,Lisa?﹣It's too expensive.I can't________it.六、动词填空用所给动词的适当形式填空(共8小题,每空格1分,满分8分)34. Our life________(change) a lot in the last few years.35. The villagers got clean drinking water by________(dig) a deep hole.36. He is a fan of Jolin.He is often heard________(sing) Jolin's songs.37. ________ (reduce) air pollution,we'd better ride more often than before.38. She hurt herself badly and________(send) to hospital at once.39. We must get there before the film________(begin ).Let's hurry.40. Who________(speak ) at the meeting this afternoon?I think Mr.Lee is.41. Your broken bicycle,I think,needs________(repair).七、句型转换(共6小题;每空格0. 5分,最后一题1分,满分6分)42. His grandfather has been dead for five years.(同义句转换)Five years________since his grandfather________.43. They read books at home.They didn't listen.to music.(合并成一句)They read books at home________ to music.44. Did Bob clean the classroom yesterday?(改为被动语态)________ the classroom________ by Bob yesterday?45. You must remember!Don't waste or pollute water.(将两句合并为一句)You must remember________ waste or pollute water.46. It's ________ from Shanghhai to Sanya.(划线提问)________is it from Shanghai to Sanya?47. for,the,teach,to,talk,the,is,rules,purpose,eating,students,of,the(.)(连词成句)________.八、翻译句子(共5小题;每小题2分,满分10分)48. 电影开始半个小时了.________.49. 应该采取更多的措施来改善人们的生活条件.________.50. 没有他父母的支持,他不可能出国留学.________.51. 那天,他们太忙于讨论那个慈善项目而不能休息.________.52. 校运会将在下星期三举行吗?________.九、阅读表达(共1小题,分别为1分,2分,3分,满分6分)53. In the past,words were the only way for people to express their ideas and feelings.Now people have a new way to share their life with their friends on We Chat Moments(微信朋友圈).To make We Chat Moments,people can use pictures,sounds,videos and their words to express what they want to say.Some people don't write anything.They share what they are eating,drinking,listening to,buying and fun time by sharing pictures.Someone says that We Chat Moments are like personal TV stations.People don't have to spend money putting them on the Internet,so it is easy for people to make them and watch them on their phones.Only the friends on the users'list can watch the Moments.Some We Chat businessmen even put the advertisements of their products(产品)on the We Chat Moments for their friends to choose and buy.We Chat Moments are becoming more popular among people,when we post(发表)something on it,we must be sure that the information should be healthy for people to read and watch.根据短文内容,回答下列问题.91.How could people express their ideas and feelings in the past?________92.What kind of information is suitable(合适的)for We Chat Moments?________93.Do you use We Chat Moments?Why or why not?________.十、书面表达(满分14分)54. 每年的6月5日是世界环境日.今年的世界环境日的中国主题是"人与自然,相联相生".为配合今年的环保主题活动,请你以"Better Environment,Better Life"为题,写一篇90字环保征文(开头已给出,不计入总数).要点如下:要求:(1)内容包括所提供的要点,可适当发挥,但不要逐条翻译;(2)文中不要提及真实姓名、学校等信息.(3)作为青少年,请你补充1﹣2点你的个人做法.Better Environment,Better LifePollution is one of the most serious problems in the world.________________.2016-2017学年江苏省苏州市常熟市八年级(下)期末英语试卷答案1. C2. B3. C4. B5. B6. C7. D8. C9. C10. B11. C12. D13. B14. C15. C16. B17. C18. A19. AADCDBDDAB20. CD21. CBD22. ABAD23. BDBC24. managed25. separated26. relatives'27. proud28. blindness29. successful30. introduction31. secretaries32. next to33. afford34. changed35. digging36. to sing37. To reduce38. was sent39. begins40. is going to speak41. repairing42. has passed,died43. instead of listening44. Was,cleaned45. not to46. three hours'flight,How far47. Thepurposeofthetalkistoteachthe studentsrules foreating48. It's been half an hour since the movie started.49. More measures should be taken to improve people's living conditions50. He could not study abroad without the support of his parents.51. That day, they were too busy discussing the charity to rest52. Will the school sports meeting be held next Wednesday?53. People used words.,Pictures,sounds,videos and their words.,Yes.I do.Because We Chat Moments are becoming more popular among people54. The rubbish is everywhere. The rivers are dirty. Air pollution causes health problems. Pollution has a great influence on People's people's daily life.,As students,weshould stop anyone from polluting the environment.It's our duty to keep our city clean and tidy.We should obey the traffic rules.People should be more friendly with each other.To stay healthy,we ought to take more exercise.I think I can talk with my friends about what to do and I will ask my family members to join us in protecting environment.So let's take action from now on so that we can reach our aim"BetterEnvironment,BetterLife".。
2016-2017学年度苏教版第二学期八年级期末检测语文试题2016-2017学年度苏教版第二学期八年级期末检测语文试题2016/2017学年度第二学期八年级期末检测语文试题温馨提示:1.你拿到的试卷满分为150分(其中卷面分5分),考试时间为150分钟。
2.试卷包括“试题卷”和“答题卷”两部分。
请务必在“答题卷”上答题。
3.答题过程中,你可以随时使用你所带的《新华字典》。
4.考试结束后,将答题卷交回即可。
一、语文积累与综合运用(35分)1.默写古诗文中的名句名篇。
(10分)(1)补写出下列名句中的上句或下句。
(任选其中6句) ①春蚕到死丝方尽。
(李商隐《无题》)②,各领风骚数百年。
(赵翼《论诗》)③夕阳西下,。
(马致远《天净沙》)④苔痕上阶绿,。
(刘禹锡《陋室铭》)⑤,燕然未勒归无计。
(范仲淹《渔家傲》)⑥何当共剪西窗烛,。
(李商(1)《水浒传》中塑造的女性形象主要有三位,她们是顾大嫂、孙二娘、和一丈青扈三娘。
(2说,五里路外有那市井,何不去沽些酒来吃?”便去包里取些碎银子,把花枪挑了酒葫芦,将火炭盖了,取毡笠子戴上,拿了钥匙出来把草厅门拽上。
出到大门首,把两扇草场门反拽上,锁了。
带了钥匙,信步投东。
以上文段出自《水浒传》,描写的人物是____________(人名),请再写出一个与之相关的故事情节。
4.九年级某班以“书香伴我成长”为主题开展综合实践活动,活动中的一些问题,请你参与解决。
(12分)(1)全民阅读我宣传据新华社北京4月19日电:在4月23日世界读书日到来前夕,“2017书香中国”全民阅读系列活动19日在湖南长沙启动,曹文轩、李健、何炅担任2017年全民阅读形象大使。
此次活动由国家新闻出版广电总局、湖南省委省政府共同主办,湖南省委宣传部、湖南省新闻出版广电局、湖南广播电视台、湖南出版集团承办。
启动仪式上,文化学者、作家、文艺工作者等围绕着共读诗书、共诵经典、共筑中国梦,分享阅读故事、畅谈阅读感受、倡议阅读行动。
2016-2017学年度第二学期期末考试试卷初二数学一、选择题1.若代数式13x +在实数范围内有意义,则实数x 的取值范围是().A .3x =-B .3x ≠-C .3x <-D .3x >-2.下列各点中,在双曲线12y x =上的点是().A .(4,3)-B .(3,4)-C .(4,3)-D .(3,4)--3.化简2(5)-的结果是().A .5B .5-C .5±D .254.菱形对角线不具有的性质是().A .对角线互相垂直B .对角线所在直线是对称轴C .对角线相等D .对角线互相平分5.苏州市5月中旬每天平均空气质量指数(AQI )分别为:84,89,83,99,69,73,78,81,89为了描述这十天空气质量的变化情况,最适合用的统计图是().A .折线统计图B .频数分布直方图C .条形统计图D .扇形统计图6.如图,DE BC∥在下列比例式中,不能成立的是().A .AD AE DB EC =B .DE AE BC EC =C .AB AC AD AE =D .DB AB EC AC =7.有五张卡片(形状、大小、质地都相同),正面分别画有下列图形:①线段;②正三角形;③平行四边形;④圆;⑤菱形.将卡片背面朝上洗匀,从中抽取一张,其正面图形既是轴对称图形又是中心对称图形的概率是().A .15B .25C .35D .458.如图,在正方形ABCD中,AC为对角线,点E在AB边上,EF AC⊥于点F,连接EC 3AF=,EFC△的周长为12,则EC的长为().A.22B.32C.5D.69.如图,路灯灯柱OP的长为8米,身高1.6米的小明从距离灯的底部(点O)20米的点A 处,沿AO所在的直线行走14米到达点B处,人影的长度().A.变长了1.5米B.变短了2.5米C.变长了3.5米D.变短了3.5米10.如图所示,在Rt AOB△中,90AOB∠=︒,23OB OA=,点A在反比例函数2y=的图像上,若点B在反比例函数kyx=的图像上,则k的值为().A.3B.3-C.94-D.9-二、填空题11.计算:2633=__________.12.一个不透明的盒子中装有3个红球,2个黄球,这些球除了颜色外其余都相同,从中随机摸出个3小球,则事件“所摸3个球中必含有红球”是__________.(填“必然事件”、“随机事件”或“不可能事件”).13.某建筑物的窗户为黄金矩形,已知它较长的一边长为1米,则较短的一边长为__________.(结果保留根号或者3位小数)14.如图,在四边形ABCD 中,AC 平分BCD ∠,要使ABC DAC ∽△△,还需加一个条件,你添加的条件是__________.(只需写一个条件,不添加辅助线和字母)(第14题)15.如图,E 是矩形ABCD 的对角线的交点,点F 在边AE 上,且DF DC =,若25ADF ∠=︒,则ECD ∠=__________.(第15题)16.关于x 的方程122x a x x +=--有增根,则a 的值为__________.17.如图,在ABC △中,90C ∠=︒,16cm BC =,12cm AC =,点P 从点B 出发,沿BC 以2cm/s 的速度向点C 移动,点Q 从点C 出发,沿CA 以1cm/s 的速度向点A 移动,若点P 、Q 分别从点B 、C 同时出发,设运动时间为ts ,当t =__________时,AB PQ ∥.(第17题)(第18题)18.如图,直线2y x =与反比例函数k y =的图像交于点(3,m)A ,点B 是线段OA 的中点,点(n,4)E 在反比例函数的图像上,点F 在x 轴上,若EAB EBF AOF ∠=∠=∠,则点F 的横坐标为__________.三、解答题19.已知22()4()a b ab A ab a b +-=-(0)ab a b ≠≠且(1)化简A ;(2)若点(,)P a b 在反比例函数5y =-的图像上,求A 的值.20.为了加强学生的安全意识,某校组织了学生参加安全知识竞赛,从中抽取了部分学生成绩(得分数取正整数,满分为100分)进行统计,已知A 组的频数a 比B 组的频数b 小,绘制统计频数分布直方图(未完成)和扇形统计图如下,请解答下列问题:(1)样本容量为:__________,a 为__________;(2)n 为__________,E 组所占比例为__________%;(3)补全频数分布直方图;(4)若成绩在80分以上记作优秀,全校共有2000名学生,估计成绩优秀学生有__________名.21.请你阅读小红同学的解题过程,并回答所提出的的问题.计算:23311x x x -+--小红的解法:算式3(1)3(1)(1)(1)(1)x x x x x x -+-=++-+-……….①3(1)3x x =-++-……………………….…②333x x =--+-…………………………...③26x =--………………………………………④(1)问:小红在第__________步开始出错(写出序号即可);(2)请你给出正确解答过程.22.如图所示,在44⨯的正方形方格中,ABC △和DEF △的顶点都在边长为1的小正方形的顶点上.(1)填空:ABC ∠=__________︒,BC __________;(2)判断ABC △与DEF △是否相似,并证明你的结论.23.已知8b +=+(1)求a 的值;(2)求22a b -的平方根.24.已知,12y y y =+,1y 与x 成正比例,2y 与x 成反比例,并且当1x =-时,1y =-,当2x =时,5y =.(1)求y 关于x 的函数关系式;(2)当0y =时,求x 的值.25.如图,在ABC △中,90BAC ∠=︒,AD 是斜边上的中线,是AD 的中点,过点A 作AF BC ∥交BE 的延长线于F ,连接CF .(1)求证:BD AF =;(2)判断四边形ADCF 的形状,并证明你的结论.26.如图,反比例函数4y x=的图像与一次函数3y kx =-的图像在第一象限类相交于点A ,且点A 的横坐标为4.(1)求点A 的坐标及一次函数的解析式;(2)若直线2x =与反比例函数和一次函数的图像分别交于点B 、C ,求ABC △的面积27.如图,在平行四边形ABCD 中,F 是AD 的中点,延长BC 到点E ,使12CE BC =,连接DE ,CF .(1)求证:DE CF =;(2)若4AB =,6AD =,60B ∠=︒,求DE 的长.28.如图,在平面直角坐标系中,一次函数6=+的图像分别与x轴,y轴交于点A,B,y kx点A的坐标为(8,0)-.(1)点B的坐标为__________;(2)在第二象限内是否存在点P,使得以P、O、A为顶点的三角形与OAB△相似?若存在,请求出所有符合条件的点P的坐标;若不存在,请说明理由.2016-2017学年度第二学期期末考试试卷初二数学答案一、选择1-5BDACA6-10BCCDD二、填空题11.12.必然事件13.1214.BAC ADC∠=∠15.57.5︒16.217.4.818.9三、解答题19.(1)1ab (2)15-20.(1)200,16(2)126,1212(3)24(4)94021.(1)②(2)2261x x +-22.(1)135,2)相似AB BC AC DE EF DF ==23.(1)17(2)15±24.(1)23y x x=-(2)25.(1)∵AF//BC ,∴AFE DBE ∠=∠,E 是AD 的中点,AD 是BC 边上的中线,∴AE=DE BD=CD 在AFE △与DBE △中AFE DBE FEA BED AE BE ∠=∠⎧⎪∠=∠⎨⎪=⎩∴AFE DBE ≌△△∴12AD DC BC ==,∴BD AF=(2)四边形是菱形,理由如下,由(1)知,AF=DB ,∵DB=DC ∴AF=CD ∵AF//BC ,∴四边形是平行四边形,D 是BC 的中点,E 是AD 的中点,∴12AD DC BC ==∴四边形ADCF 是菱形26.(1)(4,1)A ,3y x =-(2)327.(1)证明:∵四边形ABCD 是平行四边形,∴AD=BC ,AD//BC ,又∵F 是AD 的中点,∴FD=12AD CE=12BC FD=CE ,又∵FD//CE ,∴四边形CEDF 是平行四边形,∴DE=CF(228.(1)(0,6)(2)存在(8,6)-,32(8,)3-,7296(,)2525-,12896(,)2525-。
2016—2017学年度第二学期期末考试八年级数学试题温馨提示:1.本试卷分第Ⅰ卷和第Ⅱ卷两部分,共4页.满分100分,考试用时90分钟.考试结束后,将试题卷和答题卡一并交回.2.答卷前,考生务必用0.5毫米黑色签字笔将自己的姓名、准考证号、座号填写在试题卷和答题卡规定的位置上.3.第Ⅰ卷每小题选出答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其它答案标号.答案不能答在试题卷上.4.第Ⅱ卷必须用0.5毫米黑色签字笔作答,答案必须写在答题卡各题目指定区域内相应的位置,不能写在试题卷上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用涂改液、胶带纸、修正带.不按以上要求作答的答案无效.第Ⅰ卷(选择题 共30分)一、选择题:本大题共10个小题,在每小题的四个选项中只有一个是正确的,请把正确的选项选出来,用2B 铅笔把答题卡上对应题目的答案标号涂黑.每小题涂对得3分,满分30分. 1.要使二次根式5+x 在实数范围内有意义,则x 必须满足 A.x ≥5B.x ≥-5C.x > 5 D .5-≠x2.下列计算正确的是A .662-=-)(B .4972=-)( C .312314= D .2312=÷ 3.△ABC 中,AB=AC ,AD 平分∠BAC 交BC 于点D ,若AB =5,AD =3,则BC 的长为 A .5B.6C.8D.104.如图,在□ABCD 中,下列结论中错误的是 A .∠1=∠2 B. ∠BAD =∠BCD C .AB =CD D. AC ⊥BD5.□ABCD 的对角线AC ,BD 相交于点O ,再添加下 列一个条件,仍不能判定四边形ABCD 是矩形的是A.AB =ADB. OA =OBC. AC =BDD.DC ⊥BC(第4题图)B6.小王参加某企业招聘测试,他的笔试、面试、技能操作得分分别为80分、85分、90分,若依次按照2:3:5的比例确定成绩,则小王的成绩是A.255分B. 86.5分C.85.5分D. 84.5分7.菲尔兹奖是享有崇高声誉的数学大奖,每四年颁奖一次,颁给二至四名成就显著的年轻数学家.对截至2014年获奖者获奖时的年龄进行统计,整理成下面的表格.则这56个数据的中位数落在A.第一组B.第二组C.第三组D.第四组 8.一次函数y =4x ,y =﹣7x ,y =x 54-的共同特点是 A. 图象都过原点B. 图象位于同样的象限C. y 随x 增大而增大D. y 随x 增大而减小9.若正比例函数y =(1﹣4m )x 的图象经过点A (1x ,1y )和点B (2x ,2y ),当21x x < 时,21y y >,则m 的取值范围是 A. m >0B. m <0C. 41>m D. 41<m 10.如图,正方形ABCD 中,AB =6,点E 在边CD 上, 且CD =3DE .将△ADE 沿AE 对折至△AFE ,延长EF 交边BC 于点G ,连结AG 、CF .下列结论:①△ABG ≌△AFG ;②BG =GC ;③AG ∥CF ;④S △FGC =3. 其中错误的结论是 A. ①B. ②C. ③D. ④第Ⅱ卷(非选择题 共70分)二、填空题:本大题共8个小题,每小题3分,满分24分.13.如果将直线y =﹣2x 向上平移4个单位,那么平移后的直线与坐标轴围成的三角形面积 为 .14.直线1y x =+与直线22y x =-+的交点坐标是 .(第10题图)EB15.小东早晨从家骑车到学校,先上坡后下坡,行驶的路程y (千米)与所用的时间x (分)之间的函数关系如图所示,若小东返回时上、下坡的速度仍保持不变,则他从学校骑车回家用的时间是 分.16.如图,在矩形ABCD 中,DE ⊥AC ,∠ADE =21∠CDE ,则∠BDC 的度数是 .17.一个平行四边形的一条边长是9,两条对角线的长分别是12和,则这个平行四边 形的面积是 . 18.如图,在四边形ABCD 中,E 是AB 上的一点,△ADE 和△BCE 都是等边三角形,点P 、Q 、M 、N 分别为AB 、BC 、CD 、DA的中点,则四边形MNPQ 是 形.三、解答题:本大题共6个小题,满分46分. 解答时请写出必要的演推过程.19.计算:)()(322245.06-⨯-. 20.如图,△ABC 中,AB =AC ,B C =20,D 为AB 上一点,且CD =16,BD =12,求AC 的长. 21.学校想从甲、乙两名同学中选拔一人参加“中华好诗词”大赛,在相同的测试条件下, 两人5次测试成绩(单位:分)如下:甲:79,86,82,85,83; 乙:88,79,90,81,72. 请回答下列问题:(1)甲成绩的平均数x 甲= ,乙成绩的平均数是x 乙= ; (2)分别计算出甲、乙两名同学成绩的方差;(3)综合两人成绩的平均数与方差,你认为选拔谁参加比赛更合适,并说明理由.(第15题图) 分A B(第16题图)(第20题图) BC (第18题图) P A E B22.汽车出发前油箱有油50L ,行驶若干小时后,在加油站加油若干升.从出发后,油箱中剩余油量y (L )与行驶时间t (h )之间的关系图象如图所示. (1)汽车行驶 h 后加油,中途加油 L ; (2)求加油前油箱剩余油量y 与行驶时间t 的函数关系式;(3)已知加油前、后汽车都以70km/h 匀速行驶,如果加油站距目的地210km ,那么要到达目的地,油箱中的油是否够用?请说明理由.23.如图,直线34y x =+与x 轴、y 轴分别交于点A 、B ,动点P 从点A 出发,以每秒1个单位的速度沿AB 向终点B 运动,同时动点Q 从点O 出发,以每秒0.8个单位的速度沿OA 向终点A 运动,过点Q 作QC ∥AB 交y 轴于点C .设运动时间为t (0<t <5)秒,问在运动过程中,四边形APCQ 是何种特殊的四边形?并证明你的结论. 24.四边形ABCD 是菱形,∠B =60°,点E ,F 分别在BC ,DC 上,连接AE ,EF ,AF . (1)如图24-1,若∠EAF =60°,求证:△AEF 是等边三角形;(2)如图24-2,若∠AEF =60°,判断此时的△AEF 是不是等边三角形?并说明理由.(图24-1)(图24-2)(第23题图)2016—2017学年第二学期八年级数学试题参考答案及评分标准二、填空题:(每题3分,共24分)11. 5; 12.10; 13. 4; 14. 14(,)33;15.42; 16. 30°; 17. 18. 菱. 三、解答题:(共46分)19. )()(322245.06-⨯- =)()(63262226-⨯- ………………………………………… 3分=634226⨯-)( ………………………………………… 4分=3348-. ………………………………………… 6分 20. 解:∵40016122222=+=+CD BD ,4002022==BC , ………… 1分∴222BC CD BD =+,∴△DBC 是直角三角形,且∠BDC =90°, ………………………… 2分 ∴∠ADC =90°,∴222AC CD AD =+, ………………………………………… 3分 ∴设AD =x ,则AC =AB =12+x ,可得方程222)12(16x x +=+, …… 5分解方程得314=x , ………………………………………… 6分 ∴35031412=+=AC . ………………………………………… 7分 21.解:(1)83,82; ……………………………………………… 2分………5分(3)选拔甲参加比赛更合适. …………………………………………………6分∴甲的平均成绩高于乙,且甲的成绩更稳定,故选拔甲参加比赛更合适.…………………………………………………7分22.解:(1)3, 31;…………………………………………………2分(2)设函数关系式为y kt b=+,………………………………………………3分∵函数图象过点(0,50)和(3,14),∴50,314bk b=⎧⎨+=⎩,………………………………………………4分解得12,50kb=-⎧⎨=⎩,∴所求函数关系式是1250y t=-+;…………………………5分(3)油箱中的油够用.………………………………………………………6分∵汽车加油前行驶了3小时,行驶了3×70=210(km),用去了50﹣14=36升油,而目的地距加油站还有210km,∴要达到目的地还需36升油,而中途加油31升后有油45升,即油箱中的剩余油量是45升,多于36升,所以够用.因此,要到达目的地,油箱中的油够用.……………………………………8分23.解:四边形APCQ是平行四边形.…………………………………………1分证明:由题意可知AP=t,OQ=0.8t,∴Q(﹣0.8t,0),……………………2分∵AB ∥CQ ,∴可设直线CQ 解析式为34y x b =+,…………………………3分 把Q 点坐标代入可得30(0.8)4t b =⨯-+, ………………………………………4分 解得b =0.6t ,∴直线CQ 的解析式30.64y x t =+,……………………………………………5分 ∴OC =0.6t , ……………………………………………6分 在Rt △COQ 中,由勾股定理可得CQt , ………………7分 ∴CQ =AP ,又CQ ∥AP ,∴四边形APCQ 是平行四边形. …………………………………………8分 24.(1)证明:连接AC .∵四边形ABCD 是菱形,∠B =60°,∴AB =BC =CD =AD ,∠D =60°, ………………………………………………1分 ∴△ABC 和△ACD 都是等边三角形, ………………………………………2分 ∴AB =AC ,∠BAC =60°,∠ACD =60°,∴∠B =∠ACF ,…………………………………………………………3分 ∵∠BAC =60°,∠EAF =60°,∴∠BAE =∠CAF ,∴△BAE ≌△CAF , ………………………………………………………4分 ∴AE =AF ,又∠EAF =60°,∴△AEF 是等边三角形.………………………………………………………5分(答案图24-1)(答案图24-2)DB(2)此时的△AEF是等边三角形.……………………………………………6分理由:在AB上截取AG=EC,连接GE.……………………………………7分∵四边形ABCD是菱形,∠B=60°,∴AB=BC,∠C=120°,又AG=EC,∴BG=BE,又∠B=60°,∴△BGE是等边三角形,∴∠BGE=60°,∴∠AGE=120°,∴∠AGE=∠C.……………………………………………………8分∵∠AEC是△BGE的外角,∴∠AEC=∠B+∠GAE,即∠AEF+∠FEC =∠B+∠GAE,又∠B=60°,∠AEF=60°,∴∠GAE=∠FEC,又AG=EC,∠AGE=∠C,∴△AGE≌△E CF,……………………………………………………9分∴AE=EF,又∠AEF=60°,∴△AEF是等边三角形. ……………………………………………………10分。
常熟市2021-2021学年第二学期期末考试试卷初二物理2021.6一、选择题〔此题共12小题,每题2分,共24分〕1.最早测量出大气压强值的科学家是A.帕斯卡B.牛顿C.托里拆利D.汤姆生2.一架托盘天平底座的铭牌上标有“200g〞的字样,其表示的含义是A.砝码盒内最大砝码的质量是200g B.天平的最大称量值是200g C.天平自身的质量是200g D.天平标尺的分度值为200g 3.如下列图,将两个底面平整、干净的铅柱紧压后,两个铅柱就会结合在一起,即使在下面挂一个较重的物体也不会将它们拉开.这个实验说明A.分子间存在斥力C.分子间有间隙B.分子在永不停息地运动D.分子间存在引力4.以下措施中,属于增大摩擦的是A.给笨重的旅行箱装上轮子C.气垫船利用气体将船和水别离B.汽车轮胎外表做出凹凸不平的花纹D.经常给自行车轴加润滑油5.丝绸和玻璃棒摩擦后,玻璃棒带正电,以下说法正确的选项是.丝绸上一些正电荷转移到玻璃棒上.玻璃棒上的一些正电荷转移到丝绸上C.玻璃棒中的原子核束缚电子的本领弱,失去了电子.玻璃棒上的一些电子消失了6.以下事例中,目的是为了减小压强的是.火车铁轨不直接铺在路面上,而铺在一根根路枕上.为了易于把吸管插入软包装饮料盒内,吸管一端被削得很尖C.注射器的针头很尖.菜刀用过一段时间后,要磨一磨7.甲、乙两个容器横截面积不同,都盛有水,水深和a、b、c、d四个点的位置如下列图,水在a、b、c、d四处产生的压强分别为p a、p b、p c、p d,那么以下关系中正确的选项是A.p a<pcB.pa=pdC.p b>pcD.pb=pd8.一只抢救病人的氧气瓶,原来装有密度为p的压缩氧气,当抢救病人用去瓶中一半氧气后,瓶内剩余氧气的密度为A.p B.C.D.2p9.如下列图,从水平匀速飞行的飞机上先后投下的三颗炸弹,在无风、不计空气阻力的情况下,能正确反映飞机和三颗炸弹运动情况的是10.如下列图,2021年11月25日,由我国自行设计研制的歼-15舰载机在“辽宁号〞航空母舰甲板上首次成功降落,标志着我国已经根本拥有在航母上起降舰载机的能力.当舰载机完成任务飞回并降落在航母后.航母将下沉一些,所受浮力变大.航母将上浮一些,所受浮力减小.航母仍是漂浮,故所受浮力不变11.同学们在进行估测大气压实验时,首先读出注射器的最大刻度为V,用刻度尺量出其全部刻度的长度为L;然后按照如下列图的过程,慢慢的拉注射器〔甲图没有盖上橡皮帽、乙图在排尽空气后盖上了橡皮帽〕,刚好拉动活塞时,弹簧测力计示数分别是F1和F2.那么他们测量出大气压强最接近于A.F1L/V C.(F2+F1)L/V B.F2L/V D.(F2-F1)L/V12.如下列图,一只质地均匀的薄壁圆柱形平底玻璃杯,置于水平桌面中央,杯内水中漂浮着一冰块.假设冰熔化前、后水对杯底的压强分别为p1、p2,杯底对桌面的压强分别为p3、p4,p水>p冰块,那么以下关系式中正确的选项是A.p1<p2<p3<p4B.p1>p2>p3>p4C.p1=p2、p3=p4,且p1<p3D.p1=p2、p3=p4,且p1=p3二、填空题〔每空1分,共26分〕13.在探索微小粒子的过程中,人们首先发现了电子,进而认识到原子是由电子和原子核组成的,卢瑟福建立了原子的▲结构模型.后来,人们又发现,原子核是由质子和▲组成的,原子核带▲电.14.泡沫混凝土是一种新型建筑材料,它是通过将气体引入混凝土浆体中而形成的含有大量细小的封闭气孔、具有相当强度的混凝土制品.由于泡沫混凝土中含有大量封闭的细小孔隙,故它的密度较▲,保温隔热性能▲.采用该种建筑材料,一般可使建筑物自重降低25%左右,且具有良好的节能效果.15.如下列图,自来水流过玻璃管A、B、C三处的玻璃管,B处最细,竖直水柱的高度较小,表示B处压强较▲,B处流速度较▲.〔填“大〞或“小〞〕16.两滴水银靠近时,能自动结合成一滴较大的水银,这一事实说明分子之间存在着▲力,酒精和水混合后,总体积减小,这一现象直接说明分子间有▲;在分别盛有冷水和热水的杯中,各滴入一滴红墨水,可看到墨水在热水中扩散得快,由此说明分子运动的快慢跟▲有关.17.测量大气压的工具叫▲,1标准大气压约等于▲Pa,高压锅是家庭厨房中常见的炊具,它是利用增大锅内气压,使液体沸点▲〔填“升高〞或“降低〞〕的原理制成的.18.生活中处处有物理.我们可以利用矿泉水瓶做小实验来说明一些物理知识.(1)双手挤压空矿泉水瓶可以使瓶子变形,如果施加的力增大,瓶子变形程度就加大,这说明:力的作用效果跟力的▲有关.(2)如图甲所示,用一根细绳拉着空矿泉水瓶在光滑的桌面上做匀速圆周运动,水瓶的运动状态▲〔选填“发生〞或“没有〞〕变化,.空矿泉(3)往空矿泉水瓶内注入一定量的水后放在水平桌面上,能继续向前运动,这是由于瓶和水有▲的缘故.用手向前一推,瓶离开手后仍如图乙,将空矿泉水瓶放倒在水平桌面上,用力向它的侧面吹气它会滚动,但用同样的力向它的底部吹气它却不容易滑动,这说明:滚动摩擦▲滑动摩擦〔选填“大于〞或“小于〞〕.19.两物体平放在水平面上,它们质量之比是1:3,与桌面接触面积之比是2:1,那么桌面受到的压力之比是▲,所受压强之比是▲_.20.弹簧测力计的下端吊着一个金属球,弹簧测力计的示数是10N,当金属球慢慢浸入水中时,弹簧测力计的读数将▲,金属球受到的浮力将▲_.〔选填“变大〞或“变小〞〕假设将金属球的一半浸在水中时,弹簧测力计的示数是8N,这时金属球受到的浮力是▲N;假设将金属球全部浸没在水中时,弹簧测力计的示数是▲N.21.现有一架总质量为m的喷气式飞机,该飞机飞行时所受空气阻力的大小与速度平方成正比,即f=kv2〔式中k为量〕.假设飞机飞行过程中的耗油量可忽略不计.(1)该飞机在空中沿水平方向匀速飞行时,飞机所受向上的升力是由机翼上、下外表气流速度不同所产生的.假设以机翼为参照物,那么机翼上外表附近气流的速度▲____机翼下外表附近气流的速度.(2)在该飞机沿水平方向匀速直线飞行时,它上、下外表所受到的压力差为▲;假设此时飞机发动机提供的水平推力为F0,那么飞机的飞行速度为▲.〔都用字母表示〕三、解答题〔第22题8分,第23题8分,第24题8分,25题12分,第26题7分,第27题7分,共50分〕22.〔8分〕按照题目要求作图:沿与水平方向成300的力斜向右上方拉小车,画出拉力的示意图.悬挂在竖直墙面上的小球静止在如下列图的位置,请用力的示意图画出小球受到的拉力以及它对竖直墙面的压力.(3)如下列图,物体A静止在斜面上,请用力的示意图画出物体A所受到的支持力和摩擦力.(4)在竖直悬挂的磁性黑板上吸着一枚棋子,棋子静止不动,请画出棋子在竖直方向所受力的示意图.23.〔8分〕一块长方体花岗岩纪念碑高、宽、厚分别为20m、5m、2m,密度为×103kg/m3.地面所能承受的最大压强为×105Pa,为使地面能承受纪念碑,现把纪念碑立在高为1m,密度为2×103kg/m3的长方体基石上.(g取10N/kg)求:纪念碑的质量;假设纪念碑直接矗立在水平地面上,它对水平地面的压强:基石的底面积至少要多大?〔解答要求:要写出依据的主要公式或变形公式,要有数据代入和运算结果〕24.〔8分〕有一体积为1dm3的木块,密度为×103kg/m3,求:木块所受到的重力是多少?当它漂浮在水面上静止时,排开水的体积是多少?(3)假设用力把木块刚好全部压入水中,需加多大的力?(g取10N/kg)〔解答要求:要写出依据的主要公式或变形公式,要有数据代入和运算结果〕25.〔12分〕小明和小刚在物理兴趣小组活动时发现:泥沙的密度比水大.因此他们猜想:假设江水中含沙量越高,那么江水的密度可能越大.他们决定用清水和食盐配制盐水,测量的盐水密度来模拟分析这一问题.测量前,将天平放在水平桌面上,发现天平的指针向右偏了,那么,要使天平平衡,就应将横梁右端的平衡螺母适当向▲调,假设测量时,发现指针略向左偏,要使天平平衡,可行的操作是:▲.(2)小明用调节好的天平称量烧杯和盐水的质量,操作情况如下列图,请指出他在操作中的两处错误:①▲;②▲.(3)小刚发现了小明操作中的错误,及时进行纠正,并重新进行实验.他们在某次实验中天平和量筒示数如以下列图所示,请将实验数据填入下表,并计算出盐水的密度.(4)他们经过屡次的实验测量,得到了盐水密度与盐的百分含量之间存在的对应关系如下表所示:分析上表数据,可知他们的猜想是▲〔正确/错误〕的.(5)请利用表中数据,在坐标图中用平滑曲线绘出盐水的密度与盐的百分含量之间的曲线.(6)小明在实验中,测得了某盐水的密度为×103kg/m3,那么这种盐水的盐含量约▲%.(7)北大西洋海水比印度洋海水密度大,可知北大西洋海水含盐量较▲〔填“高〞或“低〞〕.26.〔7分〕小佳同学利用运动鞋进一步探究“滑动摩擦力与压力大小的定量关系〞.(1)如下列图,他用弹簧测力计水平拉着运动鞋在水平桌面上做匀速直线运动,这样操作的目的是:使运动鞋受到的▲力和▲力保持平衡,此时弹簧测力计的示数为▲N.(2)再往鞋子里添加砝码并均匀摆放, 改变的是鞋对桌面的 ▲ ,重复上述实验步骤进行屡次实验,并将实验数据记录在下表中.(3)分析实验数据,可得结论: ▲.(4)小佳同学进行屡次实验的目的是: ▲. (5)假设他拉着运动鞋匀速前进的速度由 变为,在其他情况不变时鞋受到的滑动摩擦力将 ▲.〔选填“变大〞、“不变〞或“变小〞〕 27.〔7分〕某综合实践活动小组的同学利用所学知识测量鸡蛋的密度, 该小组设计的实验步骤如下:A .用托盘天平测出鸡蛋的质量 m ;B .按如下步骤来测量鸡蛋的体积 V ;C .根据测量数据算出鸡蛋的密度p =m.V(1)综合实践活动的指导老师指出该实验的误差较大,请你指出产生误差的主要环节,并说明这个环节的测量会使测得的鸡蛋密度偏大还是偏小?(2)请你用弹簧测力计、烧杯、水、细线〔带轻质小网兜〕 ,再设计出一种测鸡蛋密度 的方案.写出实验步骤和鸡蛋密度表达式.实验步骤:①▲;②▲鸡蛋密度表达式:p 鸡蛋=▲; ③ .▲ .系列资料。
2016-2017学年江苏省苏州市常熟市八年级(下)期末英语试卷一、听力选择(共10小题;每小题1分,满分10分)第一部分:听对话回答问题本部分共有10道小题,每小题你将听到一段对话,每段对话听两遍.在听每段对话前,你将有5秒钟的时间阅读题目;听完后你还有5秒钟的时间从题中所给的A、B、C三个选项中选出最佳选项,并在答题卡上将该项涂黑.1.(1分)How did the girl's father go to school when he was a student?2.(1分)What will the weather be like next Sunday?3.(1分)What charity organization can help Xiao Li?4.(1分)What sign can they see?5.(1分)How much will the man pay for four shirts?A.40.B.70.C.140.6.(1分)When are the two speakers going to see the film?A.In the morning.B.In the afternoon.C.In the evening.7.(1分)How many times has Miss White visited Suzhou Museum?A.Only once.B.Twice.C.Three times.8.(1分)Where is Becky probably now?A.At home.B.At school.C.At a bookshop.9.(1分)How long has the woman been here?A.For 5 minutes.B.For 20 minutes.C.For 15 minutes.10.(1分)Why is the boy still in the library?A.Because the book is interesting.B.Because he forgets the time.C.Because the bad weather prevents him from leaving.第二部分:听对话和短文回答问题你将听到一段对话和两篇短文,各听两遍.听每段对话或短文前,你将有时间阅读相关小题,每小题5秒钟;听完后,每小题你还有5秒钟的时间从题中所给的A、B、C三个选项中选出最佳选项,并在答题卡上将该项涂黑.11.(2分)听一段对话,回答第11一12小题.11.What does the woman like doing in her free time?A.She likes travelling,reading and listening to music.B.She likes dancing.C.Both A and B.12.Where does she often get the books?A.From the bookshop.B.From the Internet.C.From her friends.12.(3分)听第一篇短文,完成第13一15小题.请根据短文内容,选择正确答案,完成信息记录表.13.A.8:00a.m. B.8:10a.m. C.8:20a.m.14.A.have a picnic B.hold a party C.take a shower 15.A.boating B.fishing C.swimming.13.(5分)听第二篇短文,回答第16~20小题.16.Why is Eddie's father in hospital?A.He was hit by a motorcycle.B.He was hurt in a bus accident.C.A car hit him while he was walking.17.What do the doctors say about his leg?A.It is not too serious.B.It is very serious.C.It doesn't need an operation at all.18.How long should Eddie's father stay in hospital?A.For one week only.B.For one month.C.For at least two weeks.19.What do Eddie and his mother bring him every day?A.Fruit and a newspaper.B.Food and paperC.Snacks and magazines.20.What should Eddie's father not do?A.Feel sorry for himself.B.Follow the doctor's treatment.C.Take his medicine.二、单项填空(共18小题;每小题1分,满分18分)从A、B、C、D四个选项中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.14.(1分)This is ____ public place for us to do some reading.Don't talk or laugh loudly in ____ public.()A.a;a B.the;a C.a;/ D./;/15.(1分)Jenny,my classmate,is really kind me.It's very kind her to help me with my homework.()A.to;for B.to;of C.for;for D.for;of16.(1分)There used to a small lake near my house.At that time,I was used to a walk around it after supper.()A.have;taking B.have;take C.be;taking D.be;take17.(1分)I had much fun watching the match,I was not lucky enough to take a photo with my favourite player.()A.and B.but C.so D.or18.(1分)﹣Where is your brother?﹣He England and he London for two weeks.()A.has been to;has been in B.has gone to;has been inC.has been in;has been to D.has gone to;has been to19.(1分)The water in the swimming pool isn't warm enough for the children_.()A.to swim B.to swimmingC.to swim in D.to swimming in20.(1分)﹣Your father seldom has breakfast at home,?﹣this morning.()A.hasn't he;Yes,he doesn'tB.does he;No,he hasn'tC.has he;Yes,he hasD.does he;No.But he did21.(1分)﹣To cure her mother's illness,she gave up going to college,although it was her own wishes.﹣Oh,I think we should learn from her.()A.on B.above C.against D.before22.(1分)We are planning to go for a picnic this weekend,but it the weather.()A.turns on B.puts on C.depends on D.gets on23.(1分)﹣You should be careful when _______.﹣Yes,I will.I'd like to know when ________ to have a rest.()A.driving;stopping B.driving;to stopC.to drive;stopping D.to drive;to stop24.(1分)﹣I play cards with you here?﹣Yes.But you talk loudly.Your father is sleeping now.()A.Must;can't B.May;must C.Can;mustn't D.can't;can 25.(1分)﹣How long has Li Hai ?﹣Since two years ago.()A.come to our school B.begun to learn EnglishC.joined the Reading Club D.studied in our school26.(1分)﹣When did he go to bed yesterday?﹣.()A.By the time his mother came backB.Not until his mother came backC.Until his mother came backD.Since his mother came back27.(1分)﹣Have you got anything to do this afternoon,Lucy and Lily?﹣Yes.______ of us are going to the home for the elderly.()A.Each B.Either C.Both D.All28.(1分)The boy was made the streets without money in the old days.()A.clean B.cleaned C.to clean D.be cleaned29.(1分)This novel well.Get it now before it out.()A.is sold;is sold B.sells;is soldC.sold;sells D.sells;sells30.(1分)﹣Would you mind me here?一.The seat is for Mr.Wu.()A.sitting;Of course notB.to sit;No,not at allC.sitting;Sorry,you'd better notD.to sit;Yes,I would31.(1分)﹣Amy scored 100points in the physics exam.﹣.She is the most hard﹣working student in our class.()A.No pain,no gainB.It never rains but it poursC.Don't put all your eggs in one basketD.Many hands make light work三、完形填空(共1小题;每小题10分,满分10分)先通读下面的短文,掌握其大意,然后在每小题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.32.(10分)When Amy wrote her first novel in secondary school,she never dreamed that she would become a writer one day.Like many(39)writers on theInternet,the(40)woman got into this online world by chance.Three years ago,Amy worked in a medical industry(工业、行业).Her job kept her busy for six months and left her almost(41)to do for the rest of the year.To fill the time,she started writing novels on the Internet.Her first novel was about her neighbours and their life that she is familiar(熟悉)with.Amy has been interested in writing(42)she was a child.At first,she just wanted to share her novels(43)people she knew.Then one day an editor (编辑)of a famous website emailed her,asking her(44)she would like to sell the electronic(电子)copyright(授权)of one of her novels,She agreed at once and the novel was moved to the VIP section of the website.She got $1,500 for that.Now Amy is a full﹣time(45).So far her eight novels have come out online,and five of them(46)."The Internet made me famous and brought me(47),"she said."I earn much more money now﹣about 60,000 a year.I am pleased with what I'm doing,but there is one problem﹣that my talent(才能)might run out after five years and I'll have to return to work in the medical industry." "Before that day comes,I'll keep(48)for the readers with my light and close ﹣to﹣everyday﹣lifewriting style,"said Amy with a smile.39.A.other B.others C.another D.the other 40.A.28﹣year﹣old B.28﹣years﹣old C.28years old D.28﹣year old 41.A.something B.anything C.everything D.nothing 42.A.when B.while C.since D.until 43.A.about B.of C.to D.with 44.A.that B.if C.why D.how often 45.A.housewife B.editor C.saleswoman D.writer 46.A.will print B.were printing C.printed D.were printed 47.A.success B.succeed C.successful D.successfully 48.A.to write B.writing C.write D.written.四、阅读理解(共4小题;每小题6分,满分28分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑.33.(6分)As teenagers,you have many dreams.These can be very big such as winning the Nobel Prize.Or they can be small,you may just want to become one of the best students in your class.Once you find a dream,what do you do with it?Have you ever tried to make your dream real?Follow Your Heart by an Australian writer Andrew Matthews tells us that making our dreams real is life's biggest challenge(挑战).You may think you are not very good at some school subjects,or it is impossible for you to become a writer.These kinds of thoughts stop you from realizing your dream,the book says.In fact,everyone can make his dream come true.The first thing you must do is to remember what your dream is.Don't let it leave your heart.Keep telling yourself what you want.Do this step by step,and your dream will come true because a big dream,in fact,comes from many small dreams.You must also never give up your dream.There will be difficulties on the way to your dreams.But the biggest difficulty comes from yourself.You need to decide what is the most important.Studying instead of watching TV will lead to better exam results,while saving five yuan instead of buying an ice cream means you can buy a new book.As you get closer to your dream,it may change a little.This is good as you have the chance to learn more skills and find new interests.49.What is Follow Your Heart?A.The first thing you must do to make your dream realB.The most important dream to have for teenagersC.The name of the book by Andrew MatthewsD.The name of the famous Australian writer50.If you want to make your dream real,you should.A.remember what your dream isB.keep telling yourself what you wantC.never be afraid of difficultiesD.try to start with all the things above.34.(6分)Have you ever wondered(疑惑)what goes through your mind when you choose where to sit in a new classroom?Or in a waiting room,full of strangers?Or on a bus?Researchers(研究者)have found out some interesting facts.Girls sit by girls and boys sit by boys.Adults sit together and young people choose another young person to sit near.But it goes further than this.We even choose to sit near someone who looks like us.People with glasses are more likely to sit near other people with glasses.People with long hair sit closer to other people with long hair.We seem to believe that people with similar habits or hobbies will share similar experiences and we are more likely to be accepted场people like ourselves,or even,we think we may be safer with people who look like us.Sometimes that's true but it's a pity if we always stay with the same people,the same group.The danger always staying in our comfort zone(舒适区)is that we just recycle the same opinions,the same tastes and the same ideas.We lose the chance to learn something new,find out interesting things,hear funny stories and find differences.When we always stay with the same people,how can we break down the barriers(隔阂)which prevent us from getting to know people with different ideas?And how can we avoid the ignorance(无知)?If you want to live in a society that opens to changes,new things and different opinions,be the cat among the pigeons(鸽子).Move out of your comfort zone.Go and sit next to someone different.And don't just sit there without any words.Say hello.Ask a question.Start a conversation.That's how we make friends.That's how we learn about people.That's how we open our minds to new ideas.That's how we live an exciting life.51.People like staying in their comfort zone because they may.A.remain comfortable and specialB.find out more interesting thingsC.be accepted easily and feel safeD.discover differences among themselves52.The sentence"Unsurprisingly,we prefer to sit closer to people like ourselves."should be put at the beginning ofA.Paragraph 1B.Paragraph 2C.Paragraph 3D.Paragraph 453.What is the purpose of the article?A.To tell us not to talk with strangers.B.To introduce ways to learn about the world.C.To explain how people communicate with foreigners.D.To encourage(鼓励)us to get along with different people.35.(8分)At sunrise in a fishing port of eastern Spain(西班牙),several fishing boats have already set out.These fishermen were hunting for fish,shrimps and plastic bottles.They were working for ECOAIF,a local clothing company.Since July,the company has been working with the fishermen to pick up plastic rubbish in the Mediterranean(地中海).The rubbish willbe used to make fashinable clothes."Where others see rubbish,we see raw material,"said Javier Goyeneche,president (董事长)of ECOAIF."We're showing that through recycling,we are able to create (创造)fashion."ECOAIF was founded in 2010.The Spanish company now sells its clothes made from rubbish in big cities around the world.Goyeneche said the clothes had been very popular in the US,Japan and some European countries."People really love it,"Goyeneche added."Today's customers(顾客)are showing more and more interest in environmenal protection.Besides,clothes made from rubbish are very light.They are really comfortable and cheap."54.What may the underlined word"shrimps"be?A.A kind of seafood.B.A kind of plant.C.A kind of bird.D.A kind of flower.55.What is ECOAIF according to the passage?A.A famous person.B.A clothing company.C.A social organization.D.A number of dustbins.56.The workers in ECOAIF can make clothes.A.through recyclingB.from expensive materialC.from cheap materialD.from the rubbish on the land57.Which of the following is NOT the reason why people like clothes made from rubbish?A.People are interested in environmental protection.B.The clothes made from rubbish are very light.C.The clothes made from rubbish are very cheap.D.People like all kinds of rubbish in the ocean.36.(8分)It is believed in some ways that the daughter is father's lover.But my experience has taught me in a different way.For a long time.my father has been a very vague figure(模糊形象)to me.He was a man of few words,tall but slim and nothing else.When I was in primary school.my father was never there to pick inc up,and he never came to any of my parent﹣teacher meetings.He was always busy doing projects.I remember when I was in middle school and my head was badly hurt in a PE class.During my operation.my father was nowhere to be found.This hurt me most.At that moment,I considered my Father as a cold﹣blooded man who did not care about me at all.But things seemed different at my high school graduation ceremony.where I was chosen to represent my class and give a speech.My father,once again,told me he had a business trip in a place outside the city and would be unable to show up(露面)‘"Don't come.I will be my nervousif I see you."I told him.I remember my speech went smoothly.After the ceremony was over and I was about to[学.leave,I suddenly noticed a familiar(熟悉的)looking man sitting in a corner of the hall.It was my father!I was so surprised that I rushed to him with tears(眼泪)running down my face."Well done,"he said.His eyes were also filled with tears.Later,I found out that my father had managed to finish his work by staying up late,and he drove for eight hours to get back.He had been sitting in the corner because he didn't want me to see him.My father remembered every word in my speech.For much of my life.I described my father was a cold﹣blooded man who only cared about his work.But when I thought deeply about this,it was obviously(明显地)not true.At my graduation ceremony I could feel my father's deep love.The fact is that seeing is not believing,and seeing may not be the fact if we don't perceive(感知)the world with our hearts and minds.There's no doubt that life doesn't lack(缺少)love,but sometimes our eyes have trouble seeing it.32.Which of the following is TRUE according to the passage?A.The writer's father was in the hospital during her operation.B.The writer's father attended her high school graduation ceremony.C.The writer's father sometimes picked her up when she was in primary school.D.The writer's father went to parent﹣teacher meetings when she was in primary school.33.The writer rushed to her father with tears running down her face mainly because.A.she gave a speech successfullyB.the graduation ceremony was overC.she was so nervous that she couldn't help cryingD.she was touched to find her father cared about her34.What does the underlined word"this"in the last paragraph refer to(指代)?A.That my father was always doing projects.B.That my father was a cold﹣blooded man.C.That my father sat in the corner of the hall.D.That my father's eyes were filled with tears.35.What's the best title of the passage?A.My busy fatherB.Life is full of loveC.Seeing is not believingD.A wonderful speech.五、词汇检测根据句意或括号内所给提示写出句中所缺的单词,每空一个单词.(共10小题,每小题1分,满分10分)37.(1分)The teacher and students/'mænidʒd/to run out of the building in the earthquake.38.(1分)In some foreign countries,things like glass,plastic and paper are usually /'sepəreitid/into different groups and then recycled.39.(1分)John lives in a big family.But he doesn't know all his /'relətivz/names.40.(1分)He is(骄傲)to be a volunteer for the Special Olympics World Games.41.(1分)Because of colour(盲),Jim can't join the army.42.(1分)All the Chinese celebrated the(成功的)landing of Shenzhou ﹣9spacecraft.43.(1分)There is an(介绍)to the scientist in this magazine.44.(1分)We need more(秘书)to help us finish the task.45.(1分)Our school is the theatre,on the other side of the road.46.(1分)﹣Why don't you buy a new flat,Lisa?﹣It's too expensive.I can't it.六、动词填空用所给动词的适当形式填空(共8小题,每空格1分,满分8分)47.(1分)Our life(change) a lot in the last few years.48.(1分)The villagers got clean drinking water by(dig) a deep hole.49.(1分)He is a fan of Jolin.He is often heard(sing)Jolin's songs.50.(1分)(reduce)air pollution,we'd better ride more often than before.51.(1分)She hurt herself badly and(send)to hospital at once.52.(1分)We must get there before the film(begin ).Let's hurry.53.(1分)Who(speak )at the meeting this afternoon?I think Mr.Lee is.54.(1分)Your broken bicycle,I think,needs(repair).七、句型转换(共6小题;每空格0. 5分,最后一题1分,满分6分)55.(1分)His grandfather has been dead for five years.(同义句转换)Five years since his grandfather.56.(1分)They read books at home.They didn't listen.to music.(合并成一句)They read books at home to music.57.(1分)Did Bob clean the classroom yesterday?(改为被动语态)the classroom by Bob yesterday?58.(1分)You must remember!Don't waste or pollute water.(将两句合并为一句)You must remember waste or pollute water.59.(1分)It's three hours'flight from Shanghhai to Sanya.(划线提问)is it from Shanghai to Sanya?60.(1分)for,the,teach,to,talk,the,is,rules,purpose,eating,students,of,the(.)(连词成句).八、翻译句子(共5小题;每小题2分,满分10分)61.(2分)电影开始半个小时了..62.(2分)应该采取更多的措施来改善人们的生活条件..63.(2分)没有他父母的支持,他不可能出国留学..64.(2分)那天,他们太忙于讨论那个慈善项目而不能休息..65.(2分)校运会将在下星期三举行吗?.九、阅读表达(共1小题,分别为1分,2分,3分,满分6分)66.(6分)In the past,words were the only way for people to express their ideas and feelings.Now people have a new way to share their life with their friends on We Chat Moments(微信朋友圈).To make We Chat Moments,people can use pictures,sounds,videos and their words to express what they want to say.Some people don't write anything.They share what they are eating,drinking,listening to,buying and fun time by sharing pictures.Someone says that We Chat Moments are like personal TV stations.People don't have to spend money putting them on the Internet,so it is easy for people to make them and watch them on their phones.Only the friends on the users'list can watch the Moments.Some We Chat businessmen even put the advertisements of their products(产品)on the We Chat Moments for their friends to choose and buy.We Chat Moments are becoming more popular among people,when we post(发表)something on it,we must be sure that the information should be healthy for people to read and watch.根据短文内容,回答下列问题.91.How could people express their ideas and feelings in the past?92.What kind of information is suitable(合适的)for We Chat Moments?93.Do you use We Chat Moments?Why or why not?.十、书面表达(满分14分)67.(14分)每年的6月5日是世界环境日.今年的世界环境日的中国主题是"人与自然,相联相生".为配合今年的环保主题活动,请你以"Better Environment,Better Life"为题,写一篇90字环保征文(开头已给出,不计入总数).要点如下:要求:(1)内容包括所提供的要点,可适当发挥,但不要逐条翻译;(2)文中不要提及真实姓名、学校等信息.(3)作为青少年,请你补充1﹣2点你的个人做法.Better Environment,Better LifePollution is one of the most serious problems in the world..2016-2017学年江苏省苏州市常熟市八年级(下)期末英语试卷参考答案与试题解析一、听力选择(共10小题;每小题1分,满分10分)第一部分:听对话回答问题本部分共有10道小题,每小题你将听到一段对话,每段对话听两遍.在听每段对话前,你将有5秒钟的时间阅读题目;听完后你还有5秒钟的时间从题中所给的A、B、C三个选项中选出最佳选项,并在答题卡上将该项涂黑.1.(1分)How did the girl's father go to school when he was a student?【解答】略2.(1分)What will the weather be like next Sunday?【解答】略3.(1分)What charity organization can help Xiao Li?【解答】略4.(1分)What sign can they see?【解答】略5.(1分)How much will the man pay for four shirts?A.40.B.70.C.140.【解答】略6.(1分)When are the two speakers going to see the film?A.In the morning.B.In the afternoon.C.In the evening.【解答】略7.(1分)How many times has Miss White visited Suzhou Museum?A.Only once.B.Twice.C.Three times.【解答】略8.(1分)Where is Becky probably now?A.At home.B.At school.C.At a bookshop.【解答】略9.(1分)How long has the woman been here?A.For 5 minutes.B.For 20 minutes.C.For 15 minutes.【解答】略10.(1分)Why is the boy still in the library?A.Because the book is interesting.B.Because he forgets the time.C.Because the bad weather prevents him from leaving.【解答】C第二部分:听对话和短文回答问题你将听到一段对话和两篇短文,各听两遍.听每段对话或短文前,你将有时间阅读相关小题,每小题5秒钟;听完后,每小题你还有5秒钟的时间从题中所给的A、B、C三个选项中选出最佳选项,并在答题卡上将该项涂黑.11.(2分)听一段对话,回答第11一12小题.11.What does the woman like doing in her free time?A.She likes travelling,reading and listening to music.B.She likes dancing.C.Both A and B.12.Where does she often get the books?A.From the bookshop.B.From the Internet.C.From her friends.【解答】略12.(3分)听第一篇短文,完成第13一15小题.请根据短文内容,选择正确答案,完成信息记录表.13.A.8:00a.m. B.8:10a.m. C.8:20a.m.14.A.have a picnic B.hold a party C.take a shower 15.A.boating B.fishing C.swimming.【解答】略13.(5分)听第二篇短文,回答第16~20小题.16.Why is Eddie's father in hospital?A.He was hit by a motorcycle.B.He was hurt in a bus accident.C.A car hit him while he was walking.17.What do the doctors say about his leg?A.It is not too serious.B.It is very serious.C.It doesn't need an operation at all.18.How long should Eddie's father stay in hospital?A.For one week only.B.For one month.C.For at least two weeks.19.What do Eddie and his mother bring him every day?A.Fruit and a newspaper.B.Food and paperC.Snacks and magazines.20.What should Eddie's father not do?A.Feel sorry for himself.B.Follow the doctor's treatment.C.Take his medicine.【解答】BACAA二、单项填空(共18小题;每小题1分,满分18分)从A、B、C、D四个选项中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑.14.(1分)This is ____ public place for us to do some reading.Don't talk or laugh loudly in ____ public.()A.a;a B.the;a C.a;/ D./;/【解答】a ,an,the.三者都是冠词.a,an 是不定冠词,表泛指,译为"一个",用来修饰可数名词的单数,a用在辅音音素开头的单词前面;an用于以元音音素开头的单词前;the是定冠词,表特指.译"这个,那个,这些,那些".由题干"地方",是一个可数名词的单数形式,用不定冠词来修饰,."一个"表泛指,用不定冠词.因public是以辅音音素开头的单词,所以第一个空格用a.因in public"当众",是固定短语.中间不加任何成分,所以第二个空不填.故选:C.15.(1分)Jenny,my classmate,is really kind me.It's very kind her to help me with my homework.()A.to;for B.to;of C.for;for D.for;of【解答】答案:B.for sb.常用于表示事物的特征特点,表示客观形式的形容词,如easy,hard,difficult,interesting,impossible等;of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good,kind,nice,clever,foolish,right.根据Jenny,my classmate,is really kind me,这里用介词to,再It's very kind her to help me with my homework,可知kind是表示主观感情或态度的形容词.故选B.16.(1分)There used to a small lake near my house.At that time,I was usedto a walk around it after supper.()A.have;taking B.have;take C.be;taking D.be;take【解答】答案:C.根据There used to a small lake near my house.At that time,I was used to a walk around it after supper.可知这里used to do sth表示过去常常做某事,而be used to doing sth表示习惯于做某事,这里考查there be结构.故选C.17.(1分)I had much fun watching the match,I was not lucky enough to take a photo with my favourite player.()A.and B.but C.so D.or【解答】答案:B.考查连词.A和.B但是.C所以.D或者.结合语境"观看比赛我玩得很开心,__我没有足够的运气和我最喜欢的球员合影".可知,表示转折,用but但是,选B.18.(1分)﹣Where is your brother?﹣He England and he London for two weeks.()A.has been to;has been in B.has gone to;has been inC.has been in;has been to D.has gone to;has been to【解答】答案:B.考查动词短语.have/has been to表示去过某地,人已经回来;have/has gone to表示去了某地,人未回来;have/has been in 表示到达(在)某地,并呆了一段时间.第一个空,去了应该.用has gone to.第二个空,已经在应该呆了两星期,用has been in.选B.19.(1分)The water in the swimming pool isn't warm enough for the children_.()A.to swim B.to swimmingC.to swim in D.to swimming in【解答】答案:C.根据The water in the swimming pool isn't warm enough for the children,可知这里考查形容词+enough for sb to do sth表示对某人来说做某事是足够…,这里应该说swim in the water,在水里游泳.故选C.20.(1分)﹣Your father seldom has breakfast at home,?﹣this morning.()A.hasn't he;Yes,he doesn'tB.does he;No,he hasn'tC.has he;Yes,he hasD.does he;No.But he did【解答】答案:D.根据Your father seldom has breakfast at home,可知本句考查了反义疑问句,反意疑问句的构成应该是"肯定的陈述句+否定的疑问"或"否定的陈述句+肯定的疑问".根据题干中的never可知,上句是否定的陈述句,故反意疑问句用肯定形式,在这里has是实意动词,所以小的疑问句应该用助动词does引导.Your father 用he代指,再根据this morning这里应该是说今天早晨吃了,事实是否定的,用no回答.翻译成是的,后用but表转折,说明今天早上是在家吃的.故选:D.21.(1分)﹣To cure her mother's illness,she gave up going to college,although it was her own wishes.﹣Oh,I think we should learn from her.()A.on B.above C.against D.before【解答】答案:C.on"在……上面",against"违背";above"在……之上";before"在…之前";它们都是介词.违背她自己的愿望,可译为"against her own wishes",所以空格用against.由题干"﹣﹣为了给妈妈治病,她放弃了上大学,尽管这是违背她自己的愿望.﹣哦,我认为我们应该向她学习."可知,故答案应选择C22.(1分)We are planning to go for a picnic this weekend,but it the weather.()A.turns on B.puts on C.depends on D.gets on【解答】答案:C 分析句子,推测意思是我们计划这个周末去野餐,但这要看天气而定.故选C取决于.A打开,B穿上,D上车.23.(1分)﹣You should be careful when _______.﹣Yes,I will.I'd like to know when ________ to have a rest.()A.driving;stopping B.driving;to stopC.to drive;stopping D.to drive;to stop【解答】答案:B第一空考查现在分词作状语,drive与逻辑主语you为主动关系;第二空为V+特殊疑问词+动词不等式的结构.根据句意:你开车的时候一定要要小心.﹣﹣好的,我会的.我想知道什么时候停下来休息一会.故选B.24.(1分)﹣I play cards with you here?﹣Yes.But you talk loudly.Your father is sleeping now.()A.Must;can't B.May;must C.Can;mustn't D.can't;can【解答】答案:C.考查情态动词.第二个空,结合语境"但是你__大声说话.你爸爸现在正在睡觉.".可知,应该是"不得"mustn't.can't不可能,表示否定推测.A,B,D不正确.第一个空,结合语境"我__在这里和你打牌吗?",可知,用can可以.选C.25.(1分)﹣How long has Li Hai ?﹣Since two years ago.()A.come to our school B.begun to learn EnglishC.joined the Reading Club D.studied in our school【解答】答案:D.考查动词短语.由助动词has,可知,现在完成时态,谓语动词用延续性动作,come,begin,join都是非延续性动作,因此A,B,C不正确.study学习,延续性动作,选D.26.(1分)﹣When did he go to bed yesterday?﹣.()A.By the time his mother came backB.Not until his mother came backC.Until his mother came backD.Since his mother came back【解答】答案:B.考查情景对话.根据问句的关键词"yesterday"昨天,表示过去,所以该问句是一般过去时态,又因"when"什么时候,询问时间,所以可推知答语是在过去的某个时间上床睡觉的.结合选项可知not…until…直到……才……until后跟终止性动词;until直到…….;since自从……;by the time到此时.所以选项B:直到他的母亲回来,他才去上床睡觉,符合题意,故选B.27.(1分)﹣Have you got anything to do this afternoon,Lucy and Lily?﹣Yes.______ of us are going to the home for the elderly.()A.Each B.Either C.Both D.All【解答】答案:C根据"Lucy and Lily"可知,主人公有两个."_ of us"结构中谓语的单复数由"of"前的主语决定.each表示两者及两者以上的每一个,做主语时谓语用单数形式;either 表示两者中的任一个,做主语谓语用单数;both 两者都,谓语用复数;all 三者及三者以上都,做主语时谓语用复数.根据"are"可知,此处表示两者都,故答案为both,选择C28.(1分)The boy was made the streets without money in the old days.()A.clean B.cleaned C.to clean D.be cleaned【解答】答案:C.根据The boy was made the streets without money in the old days,可知句子考查make sb do sth表示让某人做某事,改成被动语态应该把省略的to还原出来.故选C.。
初二语文2017. 6注意事项:1•本试卷共22题,满分130分,考试用时150分钟; 2•答题前,考生务必将自己的姓名、考场号、座位号用0. 5毫米黑色墨水签字笔填写在答题卡的相应位置上;3.考生答题必须答在答题纸上,答在试卷和草稿纸上无效。
第一部分(24分)1.阅读下面的文字,按要求答题。
(6分)看云海翻起,睹 _________ (落叶飘零 流水落花),孤寂难掩,暮色 mdn ( )延,谁又知道我低声浅唱,醉拨情弦。
叹一句流光似梦,苍白了谁的天地,谁的天涯?随风的尘埃,沉淀了一段过往。
寂寥雨后的天地,沉淀了一段纷飞后的宁静。
坐忘尘世,看淡云烟,(细听 倾听)细雨淡淡的声符,光阴 gtn ( )古不变的轮回。
太多的情 s 他)已模糊不清了。
一颗早已洗净铅华的心,不再留念任何繁华的人事了。
红颜为谁美,人生几回悲?零月流逝,经年花开。
凄美了结局,最终落了个“落花有意随流水,而流水无心恋落花。
当花的芬芳duo ( )入轮回,在我的眉间落入那一泪朱砂。
苍凉了谁的天地,谁的天涯”(1)根据拼音写出相应的汉字。
①暮色man ()延②g 的()古不变 ③情s 1() ④du Q)入(2)从括号内选择恰当的词语填在前面的横线上。
2.默写古诗文名句,并写出相应的作家、篇名。
(10 分)①人生在世不称意, 。
(李白《宣州谢朓楼饯别校书叔云》) ②,无案犊之劳形。
(刘禹锡《陋室铭》) ③浊酒一杯家万里,。
(范仲淹《 __________ 》) ④江山代有才人出, 。
(赵翼《论诗》) ⑤ ,山山黄叶飞。
(王勃《山中》)⑥,到乡翻似烂柯人。
(刘禹锡《酬乐天扬州初逢席上见赠》)⑦马之千里者,。
(-《马说》)⑧今诸生学于太学, 县官日有廩稍之供,,无冻馁之患矣。
(宋濂《送东阳马生序》)WWJCUdW 莒2016 — 2017学年第二学期期末考试试卷。
省常熟市- 八年级下学期期末考试数学试题 苏科版本试卷由填空题、选择题和解答题三大题组成.共29小题,总分值130分.考试时间120分钟.考前须知:2.答题必须用0.5毫米黑色墨水签字笔写在答题纸指定的位置上,不在答题区域内的答案一律无效,不得用其他笔答题;3.考生答题必须答在答题纸上,保持纸面清洁,不要折叠,不要弄破,答在试卷和草稿纸上一律无效.一、选择题 本大题共10小题,每题3分,共30分,在每题给出的四个选项中,只有一项为哪项符合题目要求的,请将选择题的答案写在相应的位置上.1.函数12y x =-中自变量x 的取值范围是 A .x>2 B .x<2C .x ≠2D .x ≠-2 2.以下分式中,属于最简分式的是A .42xB .221x x +C .211x x --D .11x x -- 3.在反比例函数1k y x-=的图象的每个象限内,y 随x 的增大而增大,那么k 值可以是 A .-1 B .1 C .2 D .34.假设两个相似三角形的面积之比为1:4,那么它们的周长之比为A . 1:2B .1:4C .1:5D .1:165.小明同学身高,经太阳光照射,在地面的影长为2米,假设此时测得一塔在同一地面的影长为60米,那么塔高应为A .90米B .80米C .45米D .40米6.以下各式中,成立的是A .()22323-⨯=-B .22x y x y +=+C .a a b b =D .当x ≤2且x ≠-1时,21x x -+有意义 7.反比例函数y =k x 的图象经过点A 〔-1,-2〕.那么当自变量x>1时,函数值y 的取值范围是A .y<2B .0<y<1C .y>2D .0<y<2 8.假设a 是满足〔x -17)2=100的一个数,b 是满足(y -4)2=17的一个数,且a 、b 都是正数,那么a -b 之值为A .5B .6C .83D .10-179.如图,等腰直角△ABC 的两直角边BC 、AB 分别在平面直角坐标系内的x 轴、y 轴的正半轴上,等腰直角△MNP 与等腰直角△ABC 是以AC 的中点O'为中心的位似图形,AC =32,假设点M 的坐标为(1,2),那么 △MNP 与△ABC 的相似比是 A .12 B .22 C .13 D .2310.如图,在第一象限内,点P(2,3),M(a ,2)是双曲线y =k x〔k ≠0〕上的 两点,PA ⊥x 轴于点A ,MB ⊥x 轴于点B ,PA 与OM 交于点C ,那么△OAC的面积为A .32B .43C .2D .83二、填空题 本大题共8小题.每题3分,共24分.把答案直接填在答题纸相对应的位置上.11.化简82-的结果是 ▲ .“任何数的平方大于0”是 ▲ “真〞或“假〞〕.13.向如下图的正三角形区域扔沙包〔区域中每一个小正三角形除颜色外完全相同〕,假设沙包击中每一个小三角形是等可能的,扔沙包1次击中阴影区域的概率等于 ▲ .14.假设分式2231x x -+的值是负数,那么x 的取值范围是 ▲ . 15.如图,点E 是□ABCD 的边BC 延长线上的一点,AE 与CD 相交于点 G ,那么图中相似三角形共有 ▲ 对.16.假设a<1,化简()211a --的结果为 ▲ .17.某市今年起调整居民用水价格,每立方米水费上涨20%,小方家去年12月份的水费是26元,而今年5月份的水费是50元.小方家今年5月份的用水量比去年12月份多8立方米,设去年居民用水价格为x 元/立方米,那么所列方程为 ▲ .18.设a>b>0.a 2+b2=4ab ,那么22a b ab-的值等于 ▲ . 三、解答题 本大题共11小题,共76分.把解答过程写在答题纸相对应的位置上,解答时写出必要的计算过程、推演步骤或文字说明.作图时用2B 铅笔或黑色墨水签字笔.19.〔此题总分值5分〕计算:211184821-+-+. 20.〔此题总分值5分〕先化简,再求值:221211111x x x x x x ⎛⎫-+-+÷ ⎪+-+⎝⎭,其中x =2-1.21.〔此题总分值5分〕解方程:242111x x x++=---.22.〔此题总分值6分〕一个口袋中有4个相同的小球,分别写有字母A 、B 、C 、D ,随机地抽出一个小球后放回,再随机地抽出一个小球.(1)使用列表法或画树状图中的一种,列举出两次抽出的球上字母的所有可能结果;(2)求两次抽出的球上字母相同的概率.23.〔此题总分值6分〕反比例函数y=kx〔k<0〕的图象经过点M(m, m-4).(1)求m的取值范围;(2)点A〔1,a〕B(3,b),C(c,-2)也在上述图象上,试比拟a、b、c的大小〔直接写出结果〕.24.〔此题总分值6分〕如图,△ABC中,点D、E分别在边AB、AC上,BE、CD相交于点F,且AD·AB=AE·AC.求证:(1)△ABE∽△ACD;(2)FD·FC=FB·FE.25.〔此题总分值8分〕小琳、晓明两人在A、B两地间各自做匀速跑步训练,他们同时从A地起跑(1)设A、B两地间的路程为s(m),跑完这段路程所用的时间t(s)与相应的速度v(m/s)之间的函数关系式是▲;(2)在上述问题所涉及的3个量s、v、t中,▲是常量,t是▲的▲比例函数;(3)“A→B〞全程200m,小琳和晓明的速度之比为4:5,跑完全程小琳要比晓明多用了8s.求小琳、晓明两人匀速跑步的速度各是多少?26.〔此题总分值8分〕如图,正方形ABCD和正方形CEFG各有两个顶点在坐标轴上,其中A(0,1),B(2,0),E、F两点同在x轴上,双曲线y=kx〔k>0〕经过边AD的中点P和边CE的一点Q.(1)求该双曲线所表示的函数关系式;(2)探索点Q是否恰为CE的中点?请说明理由.27.〔此题总分值8分〕如图,四边形ABCD中,AB=5cm,CB=3cm.∠DAB=∠ACB=90°.AD =CD,过点D作DE⊥AC,垂足为F,DE与AB相交于E点.(1)求CD的长度;(2)一动点P以2cm/s的速度从点D出发沿射线DE运动,设点P运动的时间为ts,问当t为何值时,△CDP与△ABC相似.28.〔此题总分值9分〕但凡正整数,A=111111 1111112233n n⎛⎫⎛⎫⎛⎫⎛⎫⎛⎫⎛⎫-+-+-+⎪⎪⎪⎪ ⎪⎪⎝⎭⎝⎭⎝⎭⎝⎭⎝⎭⎝⎭,B ()11111223341n n =+++⨯⨯⨯+. (1)求2A -B 的值〔结果用含n 的式子表示〕;(2)当n 取何值时,2A -B 的值等于712〔直接写出答案〕.29.〔此题总分值10分〕△ABC 中,∠ACB =90°,AB =2,点E 是BC 延长线上的一点,且ED ⊥AB ,垂足为D ,ED 与AC 交于点H .取AB 中点O ,连结OH .(1)假设ED =2,OD =13,求ED 的长;(2)假设ED =AB ,求HD +OH 的值.。
2016-2017学年江苏省苏州市常熟市八年级(下)期末物理试卷一、选择题(本题共12小题,每小题2分,共24分)1.(2分)城郊有一水泥桥,桥头立着一块如图所示的交通标志牌,则此标志为()A.限速标志B.限重标志C.限高标志D.限噪声标志2.(2分)对微观世界的认识,下列说法正确的是()A.常见物质由大量分子组成,分子直径的数量级为10﹣15mB.汤姆生发现了电子,从而说明原子核是可分的C.原子核是由带正电荷的质子和不带电的中子构成的D.物体摩擦过程中会在表面产生出新电荷,叫做摩擦起电3.(2分)进入六月以来,虞城的气温逐日升高,水银温度计内的液面也随之慢慢升高,则在此过程中水银的()A.密度变小了B.重力变小了C.质量变小了D.体积变小了4.(2分)如图所示,锤子的手柄松了,只要握住锤柄的迅速在板凳上撞击几下,锤头就紧紧地套在锤柄上了。
关于这一过程中所包含的物理知识,下列说法中正确的是()A.锤柄撞击板凳随即停止运动,说明锤柄没有惯性B.锤柄停止运动锤头仍继续往下运动,是由于锤头具有惯性C.增大锤柄撞击板凳的速度,锤头的固定效果更好,是由于锤头的惯性随着速度的增大而增大了D.这属于生活中防止惯性带来危害的典型实例5.(2分)如图所示,用扳手拧螺母,手握在扳手的不同位置,发现握在C点最容易拧动螺母,这说明力的作用效果与下列哪个因素有关()A.受力面积B.力的大小C.力的方向D.力的作用点6.(2分)如图所示,把一个重力为G的实心铁块放在空容器中,沿容器壁缓慢地向容器中加水至虚线处(相同时间内注入水的质量相等).则在加水的全过程中,能正确反映铁块受到浮力F与时间t关系的图象是()A.B.C.D.7.(2分)教材中有许多有关实验的插图,请观察图中的四幅图,判断下列表述不正确的是()A.图甲中将一个金属勺和一个塑料勺同时放入热水中,可以比较不同物质的导热性能B.图乙中气球膨胀时金属颗粒间的距离都在增大,这个模型可以模拟宇宙大爆炸C.图丙中在书和桌面加垫几支铅笔后再次拉动,可以体验变滑动为滚动可以减小摩擦D.图乙中两个铅块磨光后压在一起就会粘住,这个现象证实了分子间存在空隙8.(2分)如图所示,小物块A和弹簧放在光滑的水平面上,弹簧左端固定于竖直墙面,向左移动物块A 并压缩弹簧至B 处,静止释放物块A ,此后物块的运动是( )A .一直加速B .一直匀速C .先加速后匀速D .先加速后减速9.(2分)A 、B 是两个轻质泡沫小球,C 是用毛皮摩擦过的橡胶棒,A 、B 、C 三者之间相互作用时的场景分别如图甲、乙、丙所示,由此判断( )A .小球A 可能不带电B .小球B 可能不带电C .小球A 一定带正电D .小球B 一定带正电10.(2分)如图所示,物体A 在水平力F 的作用下,静止在竖直墙壁上。
第8题图 第9题图江苏省2016-2017学年度八年级下学期期末考试数学试题一、选择题:(本大题共10小题,每小题3分,共30分)的值为…………………………………………………………………( )A . 5;B . ﹣5;C .±5;D .25;2.在下列实数中:-2,117,0,π,﹣3.030030003…,无理数有…( ) A . 1个; B .2个; C .3个; D .4个;3. 1.0149精确到百分位的近似值是………………………………………………( )A .1.0149;B . 1.015;C . 1.01;D . 1.0;4. 如图所示,在下列条件中,不能作为判断△ABD ≌△BAC 的条件是……………( )A .∠D=∠C ,∠BAD=∠ABC ;B .∠BAD=∠ABC ,∠ABD=∠BAC ;C .BD=AC ,∠BAD=∠ABC ;D .AD=BC ,BD=AC ;5. 等腰三角形的一个角是80°,则它顶角的度数是……………………………( )A .80°B .80°或20°C .80°或50°D .20°6.(2013•淄博)如果m 是任意实数,则点P ()4,1m m -+一定不在………………( )A . 第一象限B . 第二象限C . 第三象限D . 第四象限7.若m n <<,且m ,n 为相邻的整数,则m n +的值为……………………( )A . 2;B . 3;C . 4;D . 5;8.若点A (),x a y b ++,B (),x y 在一次函数图象上的位置如图,则下列结论正确的是………………( )A .0a >;B .0a <;C .0b =;D .0ab <;9.如图,在单位正方形组成的网格图中标有AB 、CD 、EF 、GH 四条线段,其中能构成一个直角三角形三边的线段是………………………………………………………………( )A .CD 、EF 、GH ;B . AB 、EF 、GH ;C . AB 、CF 、EF ;D . GH 、AB 、CD ;10. 在平面直角坐标系中,已知A (1,1)、B (3,5),要在坐标轴上找一点P ,使得△PAB 的周长最小,则点P 的坐标为……………………………………………………………( )A .(0,1);B .(0,2);C .4,03⎛⎫ ⎪⎝⎭;D .(0,2)或4,03⎛⎫ ⎪⎝⎭; 二、填空题:(本大题共8小题,每小题3分,共24分)第4题图第10题图第16题图 11.1-= _________ .9的平方根是 _________ ;38x =-,则x = _________ .12. 点P (﹣2,3)关于x 轴的对称点的坐标是 .13.20b -=,则以a ,b 为边长的等腰三角形的周长为_________.14.(2013•娄底)如图,AB=AC ,要使△ABE ≌△ACD ,应添加的条件是 (添加一个条件即可).15.(2013.泰州)如图,△ABC 中,AB+AC=6cm ,BC 的垂直平分线l 与AC 相交于点D ,则△ABD 的周长为 ___________cm .16.如图,∠ACB=90°,AC=BC ,BE ⊥CE 于D ,AD ⊥CE 于E ,若AD ﹣BE=5cm ,则ED= cm .17. 如图,函数2y x =-和y kx b =+的图象相交于点A (),3m ,则关于x 的不等式20kx b x ++>的解集为 _________.18. 如图,四边形ABCD 中,∠BAD=120°,∠B=∠D=90°,在BC 、CD 上分别找一点M 、N ,使△AMN 周长最小时,则∠AMN+∠ANM 的度数为 .三、解答题:(本大题共11小题,共76分)19.(本题满分8分)(1114-⎛⎫ ⎪⎝⎭ (2)求()31125x -=-中x 的值.第15题图第14题图 第17题图 第18题图20.(本题满分6分)如图,AD平分∠BAC,DE⊥AB于点E,DF⊥AC于点F,且DB=DC,求证:EB=FC.21.(本题满分6分)如图,已知△ABC为等边三角形,点D、E分别在BC、AC边上,且AE=CD,AD与BE相交于点F.(1)求证:△ABE≌△CAD;(2)求∠BFD的度数.22.(本题满分6分)在如图所示的正方形网格中,每个小正方形的边长为1,格点三角形(顶点是网格线的交点的三角形)ABC的顶点A,C的坐标分别为(﹣4,5),(﹣1,3).(1)请在如图所示的网格平面内作出平面直角坐标系;(2)请作出△ABC关于y轴对称的△A′B′C′;(3)写出点B′的坐标.23. (本题满分6分)已知:y 与2x +成正比例,且1x =时,3y =(1)写出y 与x 之间的函数关系式;(2)计算4x =时,y 的值;(3)计算4y =时,x 的值.24. (本题满分6分)已知实数a 、b 、c 在数轴上的位置如图所示,且a b =, 化简a ab ++25.(本题满分8分)已知直线y kx b =+经过点A (5,0),B (1,4).(1)求直线AB 的解析式;(2)若直线24y x =-与直线AB 相交于点C ,求点C 的坐标;(3)根据图象,写出关于x 的不等式24x kx b ->+的解集.x26.(本题满分7分)如图,OABC 是一张放在平面直角坐标系中的长方形纸片,O 为原点,点A 在x 轴的正半轴上,点C 在y 轴的正半轴上,OA=10,OC=8,在OC 边上取一点D ,将纸片沿AD 翻折,使点O 落在BC 边上的点E 处,求D 、E 两点的坐标.27. (本题满分6分)如图,△ABC 中,AD 是高,E 、F 分别是AB 、AC 的中点.(1)若AB=10,AC=8,求四边形AEDF 的周长;(2)求证:EF 垂直平分AD .28.(8分)如图(1),公路上有A 、B 、C 三个车站,A 、B 两地相距630千米,甲、乙两车分别从A 、B 两地同时出发,匀速相向而行,甲车9小时到达C 站后停止行驶,乙车经过2小时到达C 站并继续行驶,乙车的速度是甲车速度的,线段MG 与折线段ND ﹣DF 分别表示甲、乙两车到C 站的距离为1y (千米)、2y (千米)与它们的行驶时间x (小时)之间的函数图象如图(2)所示.(1)求甲、乙两车的速度;(2)两小时后,求乙车到C站的距离2y与行驶时间x(小时)之间的函数表达式;(3)两函数图象交于点E,求点E的坐标,并说明它表示的实际意义.29. (本题满分9分)已知直线443y x=-+与x轴和y轴分别交与B、A两点,另一直线经过点B和点D(11,6).(1)求AB、BD的长度,并证明△ABD是直角三角形;(2)在x轴上找点C,使△ACD是以AD为底边的等腰三角形,求出C点坐标;(3)一动点P速度为1个单位/秒,沿A-B-D运动到D点停止,另有一动点Q从D点出发,以相同的速度沿D-B-A运动到A点停止,两点同时出发,PQ的长度为y(单位长),运动时间为t(秒),求y关于的t函数关系式.初二数学期末考试综合试卷(1)参考答案一、选择题:1.A ;2.C ;3.C ;4.C ;5.C ;6.D ;7.B ;8.B ;9.B ;10.D ;二、填空题:1,3±,-2;12.(-2,-3); 13.5;14.∠B=∠C ;15.6;16.5;17. 1.5x >-;18.120°;三、解答题:19.(1)-3;(2)4x =-;20. 证明:∵AD 平分∠BAC ,DE ⊥AB 于E ,DF ⊥AC 于F ,∴DE=DF ;∵DE ⊥AB 于E ,DF ⊥AC 于F .∴在Rt △DBE 和Rt △DCF 中DE DF DB DC =⎧⎨=⎩,∴Rt △DBE ≌Rt △DCF (HL );∴EB=FC .21. (1)证明:∵AB=AC ,AE=CD ,∠BAE=∠C=60°,在△ABE 和△ACD 中,AE DC BAE C AB AC =⎧⎪∠=∠⎨⎪=⎩,∴△ABE ≌△CAD (SAS ),∴AD=BE . (2)解:∵△ABE ≌△CAD ,∴∠ABE=∠CAD ,∴∠BFD=∠ABE+∠BAP=∠CAD+∠BAP=∠BAC=60°.22.(1)、(2)答案略;(3)(2,1);23.(1)2y x =+;(2)6;(3)2;24.23a c -+;25.(1)5y x =-+;(2)C (3,2);(3)3x >;26.D (0,5),E (4,8);27.(1)18;(2)∵DE=AE ,DF=AF ,∴EF 垂直平分AD.28. 解:(1)设甲车的速度为a 千米/时,则乙车的速度为a 千米/时,由函数图象,得 9a+2×a=630,解得:a=60,∴乙车的速度为:60×=45千米/时.答:甲车的速度为60千米/时,乙车的速度为45千米/时;(2)由题意,得乙车全程需要的时间为:630÷45=14小时,∴F (14,540).设DF 的解析式为y 2=k 2x+b 2,由函数图象,得, 解得:,∴两小时后,乙车到C 站的距离y 2与行驶时间x (小时)之间的函数表达式为y 2=45x ﹣90;(3)设MG 的解析式为y 1=k 1x+b 1,由题意,得,解得:, ∴y 1=﹣60x+540,∴.当y 1=y 2时,x=6,∴y=180.∴E (6,180), 表示行驶6小时后在距离C 站180千米处相遇.29. (1)(0,4),(3,0),5,10A B AB BD ==过点D 作DH x H ⊥轴于,11,2,DH AH ==由勾股定理得AD =再由2225,100AB BD ==,那么222AB BD AD +=,所以ABD ∆是直角三角形. (2)设OC 长为x ,则由等腰三角形以及勾股定理得到22226)11(4+-=+x x 解得14122x = 141(,0)22C ∴ ; (3)0t 57.5,1527.510,2151015,t y t t y t t ≤≤<≤=-<≤=-<≤。
2016-2017学年江苏省苏州市常熟市八年级(下)期末数学试卷一、选择题本大题共10小题,每小题3分,共30分.在每小题给出的四个选项中.只有一项是符合题目要求的,请将正确选项前的字母代号填在答题纸相应位置上.1.(3分)下列图形中既是轴对称图形,又是中心对称图形的是()A.B.C.D.2.(3分)下列调查中,适合采用普查的是()A.了解一批电视机的使用寿命B.了解全省学生的家庭1周内丢弃塑料袋的数量C.了解某校八(2)班学生每天用于课外阅读的时间D.了解《最强大脑》收视率3.(3分)下列二次根式中,与不是同类二次根式的是()A.B.C.D.4.(3分)下列事件中,属于必然事件的是()A.射击运动员射击一次,命中9环B.掷一枚普通的正方体骰子,向上的一面出现的点数大于6C.在同一年出生的13名学生中,至少有2人出生在同一个月D.买一张电影票,座位号是偶数号5.(3分)下列运算正确的是()A.=3B.C.=﹣5D.=2 6.(3分)已知点A1(﹣1,y1),A2(﹣3,y2)都在反比例函数y=(k>0)的图象上,则y1与y2的大小关系为()A.y1>y2B.y1<y2C.y1=y2D.无法确定7.(3分)下列性质中,菱形具有而矩形不一定具有的是()A.对角线互相平分B.对角线互相垂直C.对边平行且相等D.对角线相等8.(3分)如图,△ABC中,D、E分别在AB、AC上,下列条件中不能判断△ADE∽△ACB 的是()A.∠ADE=∠C B.∠AED=∠B C.D.9.(3分)如图,在菱形ABCD中,∠A=60°,AD=8.P是AB边上的一点,E,F分别是DP,BP的中点,则线段EF的长为()A.8B.2C.4D.210.(3分)如图,已知点A是反比例函数y=在第一象限图象上的一个动点,连接OA,以OA为长,OA为宽作矩形AOCB,且点C在第四象限,随着点A的运动,点C也随之运动,但点C始终在反比例函数y=的图象上,则k的值为()A.﹣3B.3C.﹣D.3二、填空题本大题共8小题,每小题3分,共24分.把答案直接填在答题纸相对应位置上. 11.(3分)若二次根式有意义,则x的取值范围是.12.(3分)若,则=.13.(3分)如图,D、E分别在△ABC的边CA、BA的延长线上,且DE∥BC,若AD=3,DE=4,BC=8,则DC=.14.(3分)在一只不透明的袋子中装有红球和白球共20个,这些球除了颜色外都相同.将袋子中的球摇匀,从中任意摸出一个球,记下颜色后放回,通过多次试验后发现,摸到红球的频率稳定在30%,由此估计袋中有个红球.15.(3分)如图,小军在地面上合适的位置平放了一块平面镜(平面镜的高度忽略不计),刚好在平面镜中的点C处看到旗杆顶部E,此时小军的站立点B与点C的水平距离为2m,旗杆底部D与点C的水平距离为12m.若小军的眼睛距离地面的高度为1.5m(即AB=1.5m),则旗杆的高度为m.16.(3分)如图,一次函数y=kx+b与反比例函数y=的图象交于A、B两点,其横坐标﹣4、1,则关于x的不等式>kx+b的解集为.17.(3分)如图,点F在平行四边形ABCD的边AB上,且AF:BF=1:2,连接CF并延长,交DA的延长线于点E,若△AEF的面积为2,则平行四边形ABCD的面积为.18.(3分)如图,正方形ABCD的两条对角线相交于点O.点E是OC的中点,连接DE,过点A作AF⊥DE于点F,交OD于点G.若正方形的边长为4,则DF=.三、解答题本大题共10小题,共76分.把解答过程写在答题纸相对应的位置上,解答时应写出必要的计算过程、推演步骤或文字说明.作图时用2B铅笔或黑色墨水签字笔. 19.(5分)计算:3.20.(5分)计算:.21.(6分)先化简,再求值:,其中x=.22.(7分)已知反比例函数y=的图象经过点.(1)求k的值,并判断点是否在该反比例函数的图象上;(2)该反比例函数图象在第象限,在每个象限内,y随x的增大而;(3)当﹣4<x<﹣1时,求y的取值范围.23.(8分)某报社为了了解市民“获取新闻的最主要途径”,开展了一次抽样调查,根据调查结果绘制了如图三种不完整的统计图表.请根据图表信息解答下列问题:(1)统计表中的m=,n=,并请补全条形统计图;(2)扇形统计图中“D”所对应的圆心角的度数是;(3)若该市约有120万人,请你估计其中将“电脑上网”和“手机上网”作为“获取新闻的最主要途径”的总人数.24.(8分)如图,矩形ABCD的对角线AC、BD相交于点O.过点A作AE∥BD,交CB 的延长线于点E.(1)求证:AC=AE;(2)若∠AOB=120°,AE=8,求BC的长.25.(7分)如图,已知一次函数y=kx+b的图象与反比例函数y=的图象交于点A(4,n)和点,与y轴交于点C.(1)求反比例函数和一次函数的表达式.(2)若在x轴上有一点D,其横坐标是1,连接AD、CD,求△ACD的面积.26.(10分)如图,在△ABC中,BC=2AB,AD是BC边上的中线,O是AD中点,过点A 作AE∥BC,交BO的延长线于点E,BE交AC于点F,连接DE交AC于点G.(1)判断四边形ABDE的形状,并说明理由;(2)若AB=,且OA:OB=2:3,求四边形ABDE的面积.(3)连接DF,求证:DF2=FG•FC.27.(10分)如图,已知点A是反比例函数y=(x>0)的图象上的一个动点,经过点A 的直线l交x轴负半轴于点B,交y轴正半轴于点C.过点C作y轴的垂线,交反比例函数的图象于点D.过点A作AE⊥x轴于点E,交CD于点F,连接DE.设点A的横坐标是a.(1)若BC=2AC,求点D的坐标(用含a的代数式表示);(2)若OC=3,当四边形BCDE是平行四边形时,求a的值,并求出此时直线l对应的函数表达式.28.(10分)如图,在矩形ABCD中,AB=6,BC=8,点P从点C出发,沿CB向点B匀速运动,速度为每秒1个单位,过点P作PM⊥BC,交对角线BD于点M.点Q从点B 出发,沿对角线BD向点D匀速运动,速度为每秒1个单位.P、Q两点同时出发,设它们的运动时间为t秒(0<t<8).(1)当PQ⊥BD时,求出t的值;(2)连接AM,当PQ∥AM时,求出t的值;(3)试探究:当t为何值时,△PQM是等腰三角形?2016-2017学年江苏省苏州市常熟市八年级(下)期末数学试卷参考答案与试题解析一、选择题本大题共10小题,每小题3分,共30分.在每小题给出的四个选项中.只有一项是符合题目要求的,请将正确选项前的字母代号填在答题纸相应位置上.1.(3分)下列图形中既是轴对称图形,又是中心对称图形的是()A.B.C.D.【考点】P3:轴对称图形;R5:中心对称图形.【解答】解:A、是轴对称图形,不是中心对称图形,故此选项错误;B、是轴对称图形,又是中心对称图形,故此选项正确;C、不是轴对称图形,是中心对称图形,故此选项错误;D、是轴对称图形,不是中心对称图形,故此选项错误;故选:B.2.(3分)下列调查中,适合采用普查的是()A.了解一批电视机的使用寿命B.了解全省学生的家庭1周内丢弃塑料袋的数量C.了解某校八(2)班学生每天用于课外阅读的时间D.了解《最强大脑》收视率【考点】V2:全面调查与抽样调查.【解答】解:A、了解一批电视机的使用寿命调查具有破坏性适合抽样调查,故A不符合题意;B、了解全省学生的家庭1周内丢弃塑料袋的数量调查范围广适合抽样调查,故B不符合题意;C、了解某校八(2)班学生每天用于课外阅读的时间适合普查,故C符合题意;D、了解《最强大脑》收视率调查范围广适合抽样调查,故D不符合题意;故选:C.3.(3分)下列二次根式中,与不是同类二次根式的是()A.B.C.D.【考点】77:同类二次根式.【解答】解:A、=与是同类二次根式,故A不正确;B、与不是同类二次根式,故B正确;C、=2是同类二次根式,故C不正确;D、=3是同类二次根式,故D不正确;故选:B.4.(3分)下列事件中,属于必然事件的是()A.射击运动员射击一次,命中9环B.掷一枚普通的正方体骰子,向上的一面出现的点数大于6C.在同一年出生的13名学生中,至少有2人出生在同一个月D.买一张电影票,座位号是偶数号【考点】X1:随机事件.【解答】解:A、射击运动员射击一次,命中9环是随机事件,故A不符合题意;B、掷一枚普通的正方体骰子,向上的一面出现的点数大于6是不可能事件,故B不符合题意;C、在同一年出生的13名学生中,至少有2人出生在同一个月是必然事件,故C符合题意;D、在同一年出生的13名学生中,至少有2人出生在同一个月是随机事件,故D不符合题意;故选:C.5.(3分)下列运算正确的是()A.=3B.C.=﹣5D.=2【考点】79:二次根式的混合运算.【解答】解:A、原式==,所以A选项错误;B、与不能合并,所以B选项错误;C、原式=5,所以C选项错误;D、原式==2,所以D选项正确.故选:D.6.(3分)已知点A1(﹣1,y1),A2(﹣3,y2)都在反比例函数y=(k>0)的图象上,则y1与y2的大小关系为()A.y1>y2B.y1<y2C.y1=y2D.无法确定【考点】G6:反比例函数图象上点的坐标特征.【解答】解:∵y=(k>0),∴此函数在每个象限内,y随x的增大而减小,∵点A1(﹣1,y1),A2(﹣3,y2)都在反比例函数y=(k>0)的图象上,﹣1>﹣3,∴y1<y2,故选:B.7.(3分)下列性质中,菱形具有而矩形不一定具有的是()A.对角线互相平分B.对角线互相垂直C.对边平行且相等D.对角线相等【考点】L8:菱形的性质;LB:矩形的性质.【解答】解:A、对角线互相平分,菱形和矩形都具有;B、对角线互相垂直是菱形具有而矩形不一定具有的性质;C、对边平行且相等,菱形和矩形都具有;D、对角线相等,菱形不一定具有的性质;故选:B.8.(3分)如图,△ABC中,D、E分别在AB、AC上,下列条件中不能判断△ADE∽△ACB 的是()A.∠ADE=∠C B.∠AED=∠B C.D.【考点】S8:相似三角形的判定.【解答】解:A、由∠ADE=∠C,∠A=∠A,则可判断△ADE∽△ACB;B、由∠AED=∠B,∠A=∠A,则可判断△ADE∽△ACB;C、由,∠A=∠A,则可判断△ADE∽△ACB;D、因为,此时不确定∠ADE=∠ACB,故不能确定△ADE∽△ACB;因为本题选择不能判断△ADE∽△ACB的条件,故选:D.9.(3分)如图,在菱形ABCD中,∠A=60°,AD=8.P是AB边上的一点,E,F分别是DP,BP的中点,则线段EF的长为()A.8B.2C.4D.2【考点】KX:三角形中位线定理;L8:菱形的性质.【解答】解:如图连接BD.∵四边形ABCD是菱形,∴AD=AB=8,∵∠A=60°,∴△ABD是等边三角形,∴BA=AD=8,∵PE=ED,PF=FB,∴EF=BD=4.故选:C.10.(3分)如图,已知点A是反比例函数y=在第一象限图象上的一个动点,连接OA,以OA为长,OA为宽作矩形AOCB,且点C在第四象限,随着点A的运动,点C也随之运动,但点C始终在反比例函数y=的图象上,则k的值为()A.﹣3B.3C.﹣D.3【考点】G6:反比例函数图象上点的坐标特征;LB:矩形的性质.【解答】解:设A(a,b),∴OE=a,AE=b,∵在反比例函数y=图象上,∴ab=,分别过A,C作AE⊥x轴于E,CF⊥x轴于F,∵矩形AOCB,∴∠AOE+∠COF=90°,∴∠OAE=∠COF=90°﹣∠AOE,∴△AOE∽△COF,∵OC=OA,∴===,∴OF=AE=b,CF=OE=a,∵C在反比例函数y=的图象上,且点C在第四象限,∴k=﹣OF•CF=﹣a•b=﹣3ab=﹣3,故选:A.二、填空题本大题共8小题,每小题3分,共24分.把答案直接填在答题纸相对应位置上. 11.(3分)若二次根式有意义,则x的取值范围是x≥1.【考点】72:二次根式有意义的条件.【解答】解:根据二次根式有意义的条件,x﹣1≥0,∴x≥1.故答案为:x≥1.12.(3分)若,则=.【考点】S1:比例的性质.【解答】解:∵,∴==,∴=.故答案是:.13.(3分)如图,D、E分别在△ABC的边CA、BA的延长线上,且DE∥BC,若AD=3,DE=4,BC=8,则DC=9.【考点】S9:相似三角形的判定与性质.【解答】解:∵DE∥BC,∴∠E=∠B,∠D=∠C,∴△EAD∽△CAB,∴AC:AD=BC:DE,∴AC:3=8:4.∴AC=6.∴DC=AD+AC=9.故答案为:9.14.(3分)在一只不透明的袋子中装有红球和白球共20个,这些球除了颜色外都相同.将袋子中的球摇匀,从中任意摸出一个球,记下颜色后放回,通过多次试验后发现,摸到红球的频率稳定在30%,由此估计袋中有6个红球.【考点】X8:利用频率估计概率.【解答】解:设袋中有x个红球.由题意可得:=30%,解得:x=6,故答案为:6.15.(3分)如图,小军在地面上合适的位置平放了一块平面镜(平面镜的高度忽略不计),刚好在平面镜中的点C处看到旗杆顶部E,此时小军的站立点B与点C的水平距离为2m,旗杆底部D与点C的水平距离为12m.若小军的眼睛距离地面的高度为1.5m(即AB=1.5m),则旗杆的高度为9m.【考点】SA:相似三角形的应用.【解答】解:由题意可得:AB=1.5m,BC=2m,DC=12m,△ABC∽△EDC,则=,即=,解得:DE=9,故答案为:9.16.(3分)如图,一次函数y=kx+b与反比例函数y=的图象交于A、B两点,其横坐标﹣4、1,则关于x的不等式>kx+b的解集为﹣4<x<0或x>1.【考点】G8:反比例函数与一次函数的交点问题.【解答】解:∵A、B两点的横坐标分别为﹣4、1,观察图象可知,当﹣4<x<0或x>1时,一次函数的图象在反比例函数图象的下方,∴不等式>kx+b的解集为﹣4<x<0或x>1.故答案为:﹣4<x<0或x>1.17.(3分)如图,点F在平行四边形ABCD的边AB上,且AF:BF=1:2,连接CF并延长,交DA的延长线于点E,若△AEF的面积为2,则平行四边形ABCD的面积为24.【考点】L5:平行四边形的性质;S9:相似三角形的判定与性质.【解答】解:连接AC,如图所示:∴∵四边形ABCD是平行四边形,∴AD∥BC,AB=CD,∴△AEF∽△BCF,相似比为1:2,∴△AEF的面积:△BCF的面积=1:4,∴△BCF的面积=4△AEF的面积=4×2=8,∵AF:BF=1:2,∴△BCF=面积=2△ACF的面积,∴△ACF的面积=4,∴△ABC的面积=4+8=12,∴平行四边形ABCD的面积=2△ABC的面积=24;故答案为:24.18.(3分)如图,正方形ABCD的两条对角线相交于点O.点E是OC的中点,连接DE,过点A作AF⊥DE于点F,交OD于点G.若正方形的边长为4,则DF=.【考点】KD:全等三角形的判定与性质;LE:正方形的性质.【解答】解:∵四边形ABCD是正方形,∴AB=BC=CD=AD=4,AC⊥BD,∴OA=OC=OD=OB=4,∵OE=EC=2,在Rt△DOE中.DE==2,∵S△ADE=•AE•DO=•DE•AF,∴AF=,在Rt△ADF中,DF===.故答案为.三、解答题本大题共10小题,共76分.把解答过程写在答题纸相对应的位置上,解答时应写出必要的计算过程、推演步骤或文字说明.作图时用2B铅笔或黑色墨水签字笔. 19.(5分)计算:3.【考点】78:二次根式的加减法.【解答】解:原式=3+﹣2﹣2=﹣.20.(5分)计算:.【考点】79:二次根式的混合运算.【解答】解:原式=6﹣3+9﹣7=8﹣3.21.(6分)先化简,再求值:,其中x=.【考点】6D:分式的化简求值.【解答】解:当x=时原式=÷=•==22.(7分)已知反比例函数y=的图象经过点.(1)求k的值,并判断点是否在该反比例函数的图象上;(2)该反比例函数图象在第一三象限,在每个象限内,y随x的增大而增大;(3)当﹣4<x<﹣1时,求y的取值范围.【考点】G4:反比例函数的性质;G6:反比例函数图象上点的坐标特征.【解答】解:(1)将(,)代入函数解析式,得k=3,反比例函数的解析式为y=,当x=﹣2时,y=﹣≠,∴点不在该反比例函数的图象上;(2)∵k=3>0,∴该反比例函数图象在第一三象限,在每个象限内,y随x的增大而增大,故答案为:一三,增大;(3)当x=﹣4时,y=﹣,当x=﹣1时,y=﹣3,在每个象限内,y随x的增大而增大,得﹣3<y<﹣.23.(8分)某报社为了了解市民“获取新闻的最主要途径”,开展了一次抽样调查,根据调查结果绘制了如图三种不完整的统计图表.请根据图表信息解答下列问题:(1)统计表中的m=400,n=100,并请补全条形统计图;(2)扇形统计图中“D”所对应的圆心角的度数是36°;(3)若该市约有120万人,请你估计其中将“电脑上网”和“手机上网”作为“获取新闻的最主要途径”的总人数.【考点】V5:用样本估计总体;V A:统计表;VB:扇形统计图;VC:条形统计图.【解答】解:(1)m=140÷14%×40%=400;n=140÷14%﹣280﹣400﹣140﹣80=100;条形统计图如下:故答案为:400,100;(2)扇形统计图中“D”所对应的圆心角的度数是×360°=36°;故答案为:36°;(3)×120=81.6万人,答:其中将“电脑上网”和“手机上网”作为“获取新闻的最主要途径”的总人数81.6万人.24.(8分)如图,矩形ABCD的对角线AC、BD相交于点O.过点A作AE∥BD,交CB 的延长线于点E.(1)求证:AC=AE;(2)若∠AOB=120°,AE=8,求BC的长.【考点】JA:平行线的性质;LB:矩形的性质.【解答】解:(1)证明:在矩形ABCD中,AC=BD,AD∥BC,又∵AE∥BD,∴四边形AEBD是平行四边形.∴BD=AE,∴AC=AE;(2)∵∠AOB=120°,∴∠BOC=60°,∵四边形ABCD是矩形,∴OB=OC,∴△OBC是等边三角形,∴BC=OC=AC=AE=4.25.(7分)如图,已知一次函数y=kx+b的图象与反比例函数y=的图象交于点A(4,n)和点,与y轴交于点C.(1)求反比例函数和一次函数的表达式.(2)若在x轴上有一点D,其横坐标是1,连接AD、CD,求△ACD的面积.【考点】G8:反比例函数与一次函数的交点问题.【解答】解:(1)∵点A(4,n)和点均在反比例函数y=的图象上,∴,解得:,∴反比例函数的解析式为y=,∴点A(4,1)、B(,3),将点A(4,1)、B(,3)代入y=kx+b,得:,解得:,∴一次函数的表达式为y=﹣x+4;(2)设直线y=﹣x+4与x轴交于点E,则点E的坐标为(,0),∴DE=﹣1=,则S△ACD=S△CDE﹣S△ADE=××4﹣××1=.26.(10分)如图,在△ABC中,BC=2AB,AD是BC边上的中线,O是AD中点,过点A 作AE∥BC,交BO的延长线于点E,BE交AC于点F,连接DE交AC于点G.(1)判断四边形ABDE的形状,并说明理由;(2)若AB=,且OA:OB=2:3,求四边形ABDE的面积.(3)连接DF,求证:DF2=FG•FC.【考点】KQ:勾股定理;S9:相似三角形的判定与性质.【解答】解:(1)四边形ABDE是菱形.理由如下:∵AE∥BC,∴∠EAO=∠BDO,∵O是AD中点,∴AO=DO,在△AOE和△DOB中,,∴△AOE≌△DOB(ASA),∴AE=BD,又∵AE∥BD,∴四边形ABDE是平行四边形,∵AD是BC边上的中线,∴BC=2BD,又∵BC=2AB,∴BD=BA,∴平行四边形ABDE是菱形;(2)∵四边形ABDE是菱形,∴AD⊥BE,AO=AD,BO=BE,设OA=2k,OB=3k,在Rt△AOB中,由勾股定理得,4k2+9k2=13,解得k=1,∴OA=2,OB=3,∴AD=4,BE=6,∴菱形ABDE的面积=×4×6=12;(3)证明:∵四边形ABDE是菱形,∴BE垂直平分AD,∴EA=ED,F A=FD,∴∠EAO=∠EDO,∠F AO=∠FDO,∴∠EAF=∠EDF,∵AE∥BC,∴∠EAO=∠DCF,∴∠GDF=∠DCF,又∵∠GFD=∠DFC,∴△DFG∽△CFD,∴=,∴DF2=FG•FC.27.(10分)如图,已知点A是反比例函数y=(x>0)的图象上的一个动点,经过点A 的直线l交x轴负半轴于点B,交y轴正半轴于点C.过点C作y轴的垂线,交反比例函数的图象于点D.过点A作AE⊥x轴于点E,交CD于点F,连接DE.设点A的横坐标是a.(1)若BC=2AC,求点D的坐标(用含a的代数式表示);(2)若OC=3,当四边形BCDE是平行四边形时,求a的值,并求出此时直线l对应的函数表达式.【考点】GB:反比例函数综合题.【解答】解:(1)∵点A的横坐标是a,∴点A的纵坐标为,∴AE=,∵AE⊥x轴,∴CO∥AE,∴△BOC∽△BEA,∴==,∴CO=,把y=代入y=,解得x=a,∴D点坐标为(a,);(2)∵OC=3,∴D点纵坐标为3,把y=3代入y=可得x=4,∴D(4,3),∴CD=4,∵四边形BCDE是平行四边形,∴BE=CD=4,且CD∥BE,∴△ACF∽△ABE,∴=,即=,解得a=2,∴A(2,6),且C(0,3),∴可设直线l的函数表达式为y=kx+3,把x=2,y=6代入,可得6=2k+3,解得k=,∴直线l的函数表达式为y=x+3.28.(10分)如图,在矩形ABCD中,AB=6,BC=8,点P从点C出发,沿CB向点B匀速运动,速度为每秒1个单位,过点P作PM⊥BC,交对角线BD于点M.点Q从点B 出发,沿对角线BD向点D匀速运动,速度为每秒1个单位.P、Q两点同时出发,设它们的运动时间为t秒(0<t<8).(1)当PQ⊥BD时,求出t的值;(2)连接AM,当PQ∥AM时,求出t的值;(3)试探究:当t为何值时,△PQM是等腰三角形?【考点】LO:四边形综合题.【解答】解:(1)在矩形ABCD中,AB=CD=6,BC=8,∴∠C=90°,BD=10,根据题意得,CP=BQ=t,BP=8﹣t,∵PQ⊥BD,∴∠BQP=90°,∴∠BQP=∠C,∵∠PBQ=∠DBC=45°,∴△PBQ∽△DBC,∴,∴,∴t=;(2)∵PM⊥BC,∠C=90°,∴PM∥CD,∴△BPM∽△BCD,∴,∴,∴PM=6﹣t,BM=10﹣t,∴DM=t,∵PQ∥AM,∴∠AMQ=∠MQP,∴∠AMD=∠PQB,∵四边形ABCD是矩形,∴AD∥BC,∴∠ADM=∠PBQ,∴△ADM∽△PBQ,∴,∴,∴t=;(3)①当点Q在线段BM上时,Ⅰ、若PM=MQ,∴6﹣t=10﹣t,∴t=,Ⅱ、若PM=PQ时,如图1,作PN⊥MQ于N,∴∠PNM=90°,MN=MQ=(10﹣t)=5﹣t,∴∠PNM=∠C,∵PM∥CD,∴∠PMQ=∠BDC,∴△PMN∽△BDC,∴,∴,∴t=,Ⅲ、若MQ=PQ时,如备用图1,作QE⊥PM于E,∴QE∥BP,ME=PM,∴△QEM∽△BPM,∴,∴MQ=BQ,∴10﹣t=t,∴t=,②当点M在线段BQ上时,如备用图2,∠PMQ是钝角,∴只可能PM=QM,∴6﹣t=t﹣(10﹣t),∴t=,即:满足条件的时间t为或或或.。
2016-2017学年江苏省苏州市常熟市八年级(下)期末英语试卷副标题一、单选题(本大题共18小题,共18.0分)1.This is ____ public place for us to do some reading.Don't talk or laugh loudly in ____public.()A. a; aB. the; aC. a;/D. /;/【答案】C【解析】a ,an,the.三者都是冠词.a,an 是不定冠词,表泛指,译为"一个",用来修饰可数名词的单数,a用在辅音音素开头的单词前面;an用于以元音音素开头的单词前;the是定冠词,表特指.译"这个,那个,这些,那些".由题干"地方",是一个可数名词的单数形式,用不定冠词来修饰,."一个"表泛指,用不定冠词.因public是以辅音音素开头的单词,所以第一个空格用a.因in public"当众",是固定短语.中间不加任何成分,所以第二个空不填.故选:C.有一个为我们阅读的公共地方.当众不能大声地说话和大笑.本题考查冠词的用法,做题是要注意a,an 不定冠词的不同用法,后面跟的单词或字母,是指的开头的元音音素而不是元音字母,注意看所修饰的名词是不是可数名词的单数.还一要注意固定短语的用法.根据句意及语境,从而判断出正确答案.2.Jenny,my classmate,is really kind me.It's very kind her to help me with my homework.()A. to; forB. to; ofC. for; forD. for; of【答案】B【解析】答案:B.for sb.常用于表示事物的特征特点,表示客观形式的形容词,如easy,hard,difficult,interesting,impossible等;of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good,kind,nice,clever,foolish,right.根据Jenny,my classmate,is really kind me,这里用介词to,再It's very kind her to help me with my homework,可知kind是表示主观感情或态度的形容词.故选B.我的同学詹妮对我很好,她帮助我做功课真是太好了.本题考查常用介词的辨析.在熟知句意的基础上,再联系句子所表达的含义,从而选出正确的答案.3.There used to a small lake near my house.At that time,I was used to a walk around it after supper.()A. have; takingB. have; takeC. be; takingD. be; take【答案】C【解析】答案:C.根据There used to a small lake near my house.At that time,I was used to a walk around it after supper.可知这里used to do sth表示过去常常做某事,而be used to doing sth表示习惯于做某事,这里考查there be结构.故选C.我家附近曾经有一个小湖,那时我习惯晚饭后绕着它散步.解答这类试题时,务必充分理解上下文的语境和前后文的逻辑关系,找到解题的依据,同时正确区分选项的细微差别,准确作答.4.I had much fun watching the match, I was not lucky enough to take a photo with my favourite player.()A. andB. butC. soD. or【答案】B【解析】答案:B.考查连词.A和.B但是.C所以.D或者.结合语境"观看比赛我玩得很开心,__我没有足够的运气和我最喜欢的球员合影".可知,表示转折,用but但是,选B.观看比赛我玩得很开心,但我没有足够的运气和我最喜欢的球员合影.连词可以表并列、承接、转折、因果、选择、假设、比较、让步等关系,要结合语境,选择合适连词用法.5.-Where is your brother?-He England and he London for two weeks.()A. has been to; has been inB. has gone to; has been inC. has been in; has been toD. has gone to; has been to【答案】B【解析】答案:B.考查动词短语.have/has been to表示去过某地,人已经回来;have/has gone to表示去了某地,人未回来;have/has been in 表示到达(在)某地,并呆了一段时间.第一个空,去了应该.用has gone to.第二个空,已经在应该呆了两星期,用has been in.选B.--你哥哥在哪里?--他到英国去了,已经在伦敦呆了两个星期了.考查动词短语,在日常学习中要积累一些动词短语的固定用法,结合语境,选择合适的搭配.完成试题.6.The water in the swimming pool isn't warm enough for the children_.()A. to swimB. to swimmingC. to swim inD. to swimming in【答案】C【解析】答案:C.根据The water in the swimming pool isn't warm enough for the children,可知这里考查形容词+enough for sb to do sth表示对某人来说做某事是足够…,这里应该说swim in the water,在水里游泳.故选C.游泳池里的水不够暖和,孩子们不能游泳.熟悉不定式的用法,结合题意,给出答案.7.-Your father seldom has breakfast at home,?- this morning.()A. hasn't he; Yes,he doesn'tB. does he; No,he hasn'tC. has he; Yes,he hasD. does he; No.But he did【答案】D【解析】答案:D.根据Your father seldom has breakfast at home,可知本句考查了反义疑问句,反意疑问句的构成应该是"肯定的陈述句+否定的疑问"或"否定的陈述句+肯定的疑问".根据题干中的never可知,上句是否定的陈述句,故反意疑问句用肯定形式,在这里has是实意动词,所以小的疑问句应该用助动词does引导.Your father 用he代指,再根据 this morning 这里应该是说今天早晨吃了,事实是否定的,用no回答.翻译成是的,后用but表转折,说明今天早上是在家吃的.故选:D.--你爸爸很少在家吃早饭,是吗?--是的,但是他今天早上吃了.考查反意疑问句时,要注意一些表示否定意义的词,如:few;little;never;hardly;seldom 等.8.-To cure her mother's illness,she gave up going to college,although it was her own wishes.-Oh,I think we should learn from her.()A. onB. aboveC. againstD. before【答案】C【解析】答案:C.on"在……上面",against"违背";above"在……之上";before"在…之前";它们都是介词.违背她自己的愿望,可译为"against her own wishes",所以空格用against.由题干"--为了给妈妈治病,她放弃了上大学,尽管这是违背她自己的愿望.-哦,我认为我们应该向她学习."可知,故答案应选择C--为了给妈妈治病,她放弃了上大学,尽管这是违背她自己的愿望.-哦,我认为我们应该向她学习.本题考查介词的分析,在熟知所供词的含义基础上,根据句意及上下文联系,判断出正确答案.9.We are planning to go for a picnic this weekend,but it the weather.()A. turns onB. puts onC. depends onD. gets on【答案】C【解析】答案:C 分析句子,推测意思是我们计划这个周末去野餐,但这要看天气而定.故选C取决于.A打开,B穿上,D上车.我们计划这个周末去野餐,但这要看天气而定.解答这类试题时,务必充分理解上下文的语境和前后文的逻辑关系,找到解题的依据,同时正确区分选项的细微差别,准确作答.10.-You should be careful when _______.-Yes,I will.I'd like to know when ________ to have a rest.()A. driving; stoppingB. driving; to stopC. to drive; stoppingD. to drive; to stop【答案】B【解析】答案:B第一空考查现在分词作状语,drive与逻辑主语you为主动关系;第二空为V+特殊疑问词+动词不等式的结构.根据句意:你开车的时候一定要要小心.--好的,我会的.我想知道什么时候停下来休息一会.故选B.--当你开车的时候一定要小心.--好的,我会的.我想知道什么时候停下来休息一会.本题考查的是动词的用法,理解句意并熟记这些固定用法是解答本题的关键.11.- I play cards with you here?-Yes.But you talk loudly.Your father is sleeping now.()A. Must; can'tB. May; mustC. Can; mustn'tD. can't; can【答案】C【解析】答案:C.考查情态动词.第二个空,结合语境"但是你__大声说话.你爸爸现在正在睡觉.".可知,应该是"不得"mustn't.can't不可能,表示否定推测.A,B,D 不正确.第一个空,结合语境"我__在这里和你打牌吗?",可知,用can可以.选C.--我可以在这里和你打牌吗?--是的,但是你不得大声说话.你爸爸现在正在睡觉.情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语.否定形式通常在后面加not.要注意情态动词的不同用法.12.-How long has Li Hai ?-Since two years ago.()A. come to our schoolB. begun to learn EnglishC. joined the Reading ClubD. studied in our school【答案】D【解析】答案:D.考查动词短语.由助动词has,可知,现在完成时态,谓语动词用延续性动作,come,begin,join都是非延续性动作,因此A,B,C不正确.study学习,延续性动作,选D.--李海在我们学校学习多长时间了?--自从两年前.考查动词短语,在日常学习中要积累一些动词短语的固定用法,结合语境,选择合适的搭配.完成试题.13.-When did he go to bed yesterday?- .()A. By the time his mother came backB. Not until his mother came backC. Until his mother came backD. Since his mother came back【答案】B【解析】答案:B.考查情景对话.根据问句的关键词"yesterday"昨天,表示过去,所以该问句是一般过去时态,又因"when"什么时候,询问时间,所以可推知答语是在过去的某个时间上床睡觉的.结合选项可知not…until…直到……才……until后跟终止性动词;until直到…….;since自从……;by the time到此时.所以选项B:直到他的母亲回来,他才去上床睡觉,符合题意,故选B.昨天他什么时候上床睡觉的?直到他的母亲回来.考查交际用语,在日常学习中要从实际情景交际中多练习,掌握一些习惯用语.结合语境,分析选项,选择正确的回答,完成练习.14.-Have you got anything to do this afternoon,Lucy and Lily?-Yes.______ of us are going to the home for the elderly.()A. EachB. EitherC. BothD. All【答案】C【解析】答案:C根据"Lucy and Lily"可知,主人公有两个."_ of us"结构中谓语的单复数由"of"前的主语决定.each表示两者及两者以上的每一个,做主语时谓语用单数形式;either表示两者中的任一个,做主语谓语用单数;both 两者都,谓语用复数;all 三者及三者以上都,做主语时谓语用复数.根据"are"可知,此处表示两者都,故答案为both,选择C--你们今天下午有什么事情要做吗,露西、莉莉?--是的,我们两个准备去敬老院.做这样的题要先明白各个不定代词的意义及用法,然后根据句意选出合适的选项.15.The boy was made the streets without money in the old days.()A. cleanB. cleanedC. to cleanD. be cleaned【答案】C【解析】答案:C.根据The boy was made the streets without money in the old days,可知句子考查make sb do sth表示让某人做某事,改成被动语态应该把省略的to还原出来.故选C.这个男孩在过去被要求在没有钱的情况下清扫街道.不定式在句子中可做主语、宾语、表语、定语、状语和宾语补语.要结合语境选择合适用法,注意一些固定搭配.16.This novel well.Get it now before it out.()A. is sold; is soldB. sells; is soldC. sold; sellsD. sells; sells【答案】B【解析】答案:B.考查动词第三人称单数及被动语态.第一个空,结合语境"这本小说卖得很好",sell不及物动词,没有被动语态.主语单数,一般现在时态,谓语动词用第三人称单数sells.第二个空,sell out卖完.主语it代指"小说",应该是"被卖完",sell out 有被动语态.主语单数,一般现在时态的被动语态.结构是is/am/are+动词的过去分词.用is.sell的过去分词是sold.选B.这本小说卖得很好,卖完之前就买下来.实义动词的第三人称单数.通常用于一般现在时态,要结合主语的单复数变化,选择合适的实义动词形式,注意实义动词第三人称单数变化规则.注意被动语态用法.17.-Would you mind me here?一.The seat is for Mr.Wu.()A. sitting; Of course notB. to sit; No,not at allC. sitting; Sorry,you'd better notD. to sit; Yes,I would【答案】C【解析】答案:C.根据Would you mind me here,可知这里mind后面跟动名词形式,再根据The seat is for Mr.Wu,可知这个座位已经有人坐了,所以用Sorry,you'd better not来回答.故选C.--你介意我坐在这里吗?--对不起,你最好不要坐在这里,座位是为吴先生留的.动名词的形式是动词+ing,动名词从它的名称上就知道它具有动词和名词的功能,因此它在句中,可作主语、表语、宾语、定语.要结合语境选择合适用法,注意动名词变法.18.-Amy scored 100points in the physics exam.- .She is the most hard-working student in our class.()A. No pain,no gainB. It never rains but it poursC. Don't put all your eggs in one basketD. Many hands make light work【答案】A【解析】答案:A考查谚语.A不一份耕耘,一份收获,B不鸣则已一鸣惊人,C不要孤注一掷,D人多好办事;根据后句句意"她是我们班最用功的学生"可知,前面是"一份耕耘,一份收获",故答案为A.--艾米在物理考试中得了100分.--一份耕耘,一份收获.她是我们班最用功的学生.做单项选择填空的技巧是:排除比较法.根据上下文意思或时间状语,推断出合适的时态,排除错误的答案,然后再比较剩下的选择项,从而做出正确的答案.二、完形填空(本大题共10小题,共15.0分)When Amy wrote her first novel in secondary school,she never dreamed that she would become a writer one day.Like many(19)writers on the Internet,the(20)woman got into this online world by chance.Three years ago,Amy worked in a medical industry(工业、行业).Her job kept her busy for six months and left her almost(21)to do for the rest of the year.To fill the time,she started writing novels on the Internet.Her first novel was about her neighbours and their life that she is familiar(熟悉)with.Amy has been interested in writing(22)she was a child.At first,she just wanted to share her novels(23)people she knew.Then one day an editor(编辑)of a famous website emailed her,asking her(24)she would like to sell the electronic(电子)copyright(授权)of one of her novels,She agreed at once and the novel was moved to the VIP section of the website.She got $1,500 for that.Now Amy is a full-time(25).So far her eight novels have come out online,and five ofthem(26)."The Internet made me famous and brought me(27),"she said."I earn much more money now-about 60,000 a year.I am pleased with what I'm doing,but there is one problem-that my talent(才能)might run out after five years and I'll have to return to work in the medical industry.""Before that day comes,I'll keep(28)for the readers with my light and close-to-everyday-life writing style,"said Amy with a smile.19. A. other B. others C. another D. the other20. A. 28-year-old B. 28-years-old C. 28years old D. 28-year old21. A. something B. anything C. everything D. nothing22. A. when B. while C. since D. until23. A. about B. of C. to D. with24. A. that B. if C. why D. how often25. A. housewife B. editor C. saleswoman D. writer26. A. will print B. were printing C. printed D. were printed27. A. success B. succeed C. successful D. successfully28. A. to write B. writing C. write D. written.【答案】【小题1】A 【小题2】A 【小题3】D 【小题4】C 【小题5】D【小题6】B 【小题7】D 【小题8】D 【小题9】A 【小题10】B【解析】39.A 考查词义辨析及语境的理解.other 其他的,后加复数;others 代词,后不加名词;another另一个;the other两个中指剩余的那个,根据后面writers复数形式,应该是像网络上的其他作家一样.故选A.40.A 考查形容词及语境的理解.考查固定用法;数字加连字符加名词的单数,构成复合形容词,修饰后面woman,故选A.41.D 考查代词及语境的理解.something 某事;anything任何事;everything每件事;nothing无事.根据Her job kept her busy for six months and left her almost(41)to do for the rest of the year:这份工作使她忙六个月,但一年的剩余时间无事可做.故选D.42.C考查连词及语境的理解.When当……时候;while当……时候;since自……以来;until直到.根据前面Amy has been interested,since从句可以和现在完成时态连用.从她是个孩子时她就对写作感兴趣.故选C.43.D 考查介词及语境的理解.句.about关于;of的;to的;with 与……一起.share…with …和……分享……分.故选D.44.B 考查连接词及语境的理解.that 关系词;if 是否,引导宾语从句;why为什么;how often多久.根据Then one day an editor(编辑)of a famous website emailed her,asking her(44)she would like to sell the electronic(电子)copyright(授权)of one of her novels:一天一个网站编辑询问她是否她愿意把她的小说中的一个电子授权出售.结合句意和结构,故选B.45.D考查名词及语境的理解.housewife家庭主妇;editor编辑;saleswoman.售货员;writer.作家;根据句意和上下文So far her eight novels have come out online到目前为止,她的八部小说已经在网上出版了,可知现在艾米是个全职作家,故选D.46.D 考查动词及语境的理解.根据So far her eight novels have come out online,and five of them到目前为止,她的八部小说已经在网上出版了,后面应该是5本被印刷了,主语是动作的承受者,要用被动语态,构成是be+过去分词,print的过去分词是printed,故选D.47.A考查名词及语境的理解.success名词,成功;succeed动词,成功;successful形容词,成功的;successfully成功地.根据The Internet made me famous and brought me 句意网络使我出名并带给我成功,应选名词.故选A.48.B 考查动词及语境的理解.考查固定用法,keep doing sth坚持做某事,故选B.短文大意:这篇短文主要介绍了作家艾米一开始只是为了打发时间开始在网络上写小说.后来她的小说被网络编辑看重,花重金买了下了授权.现在她已经成为一个全职作家.考查完型填空.根据所给的短文对意思有所了解,然后根据短文的大体意思,选择每个符合题意的答案,使短文更通顺.三、阅读理解(本大题共13小题,共26.0分)AAs teenagers,you have many dreams.These can be very big such as winning the Nobel Prize.Or they can be small,you may just want to become one of the best students in your class.Once you find a dream,what do you do with it?Have you ever tried to make your dream real?Follow Your Heart by an Australian writer Andrew Matthews tells us that making our dreams real is life's biggest challenge(挑战).You may think you are not very good at some school subjects,or it is impossible for you to become a writer.These kinds of thoughts stop you from realizing your dream,the book says.In fact,everyone can make his dream come true.The first thing you must do is to remember what your dream is.Don't let it leave your heart.Keep telling yourself what you want.Do this step by step,and your dream will come true because a big dream,in fact,comes from many small dreams.You must also never give up your dream.There will be difficulties on the way to your dreams.But the biggest difficulty comes from yourself.You need to decide what is the most important.Studying instead of watching TV will lead to better exam results,while saving five yuan instead of buying an ice cream means you can buy a new book.As you get closer to your dream,it may change a little.This is good as you have the chance to learn more skills and find new interests.29.What is Follow Your Heart?______A. The first thing you must do to make your dream realB. The most important dream to have for teenagersC. The name of the book by Andrew MatthewsD. The name of the famous Australian writer30.If you want to make your dream real,you should ______ .A. remember what your dream isB. keep telling yourself what you wantC. never be afraid of difficultiesD. try to start with all the things above.【答案】【小题1】C 【小题2】D【解析】【小题49】C 推理判断题.根据第二段Follow Your Heart by an Australian writer Andrew Matthews tells us that making our dreams real is life's biggest challenge(挑战).描述Follow Your Heart是由澳大利亚作家Andrew Matthews写的,告诉我们,让我们的梦想成真是人生最大的挑战.可知这是一本书的名字,故选C.【小题50】D 根据短文第三段描述In fact,everyone can make his dream come true.The first thing you must do is to remember what your dream is.实上,每个人都可以实现自己的梦想,你要做的第一件事就是记住你的梦想;第四段You must also never give up your dream.你也必须永远不要放弃你的梦想;及第五段There will be difficulties on the way to your dreams.But the biggest difficulty comes from yourself.在通往梦想的路上会有困难,但最大的困难来自于你自己;可知包括选项ABC全部内容,故选D,努力开始做上面所有事情.文章大意:主要讲述了每个人都有梦想,并且详细描述了如何实现梦想的具体做法,教育人们永远不要停止想要成功的梦想.本文浅显易懂,各个小题都能在文中找到适当依据.只要认真阅读短文,注意前后联系,就能顺利完成阅读.文章所设试题主要考察细节查找,做题关键是找出原文的根据,认真核查小题和原文的异同.BHave you ever wondered(疑惑)what goes through your mind when you choose where to sit in a new classroom?Or in a waiting room,full of strangers?Or on a bus?Researchers(研究者)have found out some interesting facts.Girls sit by girls and boys sit by boys.Adults sit together and young people choose another young person to sit near.But it goes further than this.We even choose to sit near someone who looks like us.People with glasses are more likely to sit near other people with glasses.People with long hair sit closer to other people with long hair.We seem to believe that people with similar habits or hobbies will share similar experiences and we are more likely to be accepted场people like ourselves,or even,we think we may be safer with people who look like us.Sometimes that's true but it's a pity if we always stay with the same people,the same group.The danger always staying in our comfort zone(舒适区)is that we just recycle the same opinions,the same tastes and the same ideas.We lose the chance to learn something new,find out interesting things,hear funny stories and find differences.When we always stay with the same people,how can we break down the barriers(隔阂)which prevent us from getting to know people with different ideas?And how can we avoid the ignorance(无知)?If you want to live in a society that opens to changes,new things and different opinions,be the cat among the pigeons(鸽子).Move out of your comfort zone.Go and sit next to someone different.And don't just sit there without any words.Say hello.Ask a question.Start a conversation.That's how we make friends.That's how we learn about people.That's how we open our minds to new ideas.That's how we live an exciting life.31.People like staying in their comfort zone because they may ______ .A. remain comfortable and specialB. find out more interesting thingsC. be accepted easily and feel safeD. discover differences among themselves32.The sentence"Unsurprisingly,we prefer to sit closer to people like ourselves."should beput at the beginning of ______A. Paragraph 1B. Paragraph 2C. Paragraph 3D. Paragraph 433.What is the purpose of the article?______A. To tell us not to talk with strangers.B. To introduce ways to learn about the world.C. To explain how people communicate with foreigners.D. To encourage(鼓励)us to get along with different people.【答案】【小题1】C 【小题2】B 【小题3】D【解析】小题51:C 细节理解题.由文章第三段第一句We seem to believe that people with similarhabits or hobbies will share similar attitudes and we are more likely to be acceptedby people like ourselves or even,we think we may be safer with people who looklike us.我们似乎认为,类似的习惯或爱好的人分享相同的态度,我们更容易被人喜欢自己,甚至,我们认为我们可以与那些和我们像的人更安全可知答案为C 容易接受,感觉安全.故选择C.小题52:B 细节理解题.根据Unsurprisingly,we prefer to sit closer to people like ourselves 令人不为惊奇的是,我们喜欢坐在喜欢我们人的旁边.通读全文,第二自然段Girls sit by girls and boys sit by boys.Adults sit together and young people choose another young person to sit near.But it goes further than this.We even choose to sit near someone who looks like us.People with glasses are more likely to sit near other people with glasses.People with long hair sit closer to other people with long hair.主要讲述的是我们喜欢和喜欢我们的人坐在一起.故选择B.小题53:D 主旨大意题.由文章的最后一段总结话语:Move out of your comfort zone.及最后一段的内容可知,文章的目的是鼓励大家走出去接触更多不同于自己的人,因此D 为正确答案.文章大意:本文为议论文.文章主要内容为我们经常和熟悉的人坐在一起,文章最后鼓励大家和不熟悉的人坐在一起.本文是一篇日常生活类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.CAt sunrise in a fishing port of eastern Spain(西班牙),several fishing boats have already set out.These fishermen were hunting for fish,shrimps and plastic bottles.They were working for ECOAIF,a local clothing company.Since July,the company has been working with the fishermen to pick up plastic rubbish in the Mediterranean(地中海).The rubbish willbe used to make fashinable clothes."Where others see rubbish,we see raw material,"said Javier Goyeneche,president(董事长)of ECOAIF."We're showing that through recycling,we are able to create(创造)fashion."ECOAIF was founded in 2010.The Spanish company now sells its clothes made from rubbish in big cities around the world.Goyeneche said the clothes had been very popular in the US,Japan and some European countries."People really love it,"Goyeneche added."Today's customers(顾客)are showing more and more interest in environmenal protection.Besides,clothes made from rubbish are very light.They are really comfortable and cheap."34.What may the underlined word"shrimps"be?______A. A kind of seafood.B. A kind of plant.C. A kind of bird.D. A kind of flower.35.What is ECOAIF according to the passage?______A. A famous person.B. A clothing company.C. A social organization.D. A number of dustbins.36.The workers in ECOAIF can make clothes ______ .A. through recyclingB. from expensive materialC. from cheap materialD. from the rubbish on the land37.Which of the following is NOT the reason why people like clothes made from rubbish?______A. People are interested in environmental protection.B. The clothes made from rubbish are very light.C. The clothes made from rubbish are very cheap.D. People like all kinds of rubbish in the ocean.【答案】【小题1】A 【小题2】B 【小题3】A 【小题4】D【解析】54.A,词义猜测题,These fishermen were hunting for fish,shrimps and plastic bottles出海去猎鱼和塑料瓶子,根据句意推测.此单词代表的是一种海里的东西,指虾.选择A.55.B,细节理解题,ECOAIF was founded in 2010.The Spanish company now sells its clothes,ECOAIF是一个卖衣服的西班牙公司,选择B.56.A,细节理解题,We're showing that through recycling,we are able to create(创造)fashion我们通过循环利用,可以创造时尚,由此可知是循环利用,选择A.57.D,细节理解题,These fishermen were hunting for fish,shrimps and plastic bottles人们去海里打捞的除了鱼,就只有塑料瓶子,并不是所有的垃圾,选择A.文章大意文章主要讲述的是有关于海洋中废物回收利用的事情.人们打捞海里的塑料瓶子,通过回收利用做成衣服远销世界各地,很受人们欢迎.对于阅读表达题,一定要记得首先通读全文,了解文章大意,然后再根据文章关键词,关键句,掌握细节问题,并进行推理判断,再去回答具体的问题.DIt is believed in some ways that the daughter is father's lover.But my experience has taught me in a different way.For a long time,my father has been a very vague figure(模糊形象)to me.He was a man of few words,tall but slim and nothing else.When I was in primary school,my father was never there to pick me up,and he never came to any of my parent-teacher meetings.He was always busy doing projects.I remember when I was in middle school and my head was badly hurt in a PE class.During my operation,my father was nowhere to be found.This hurt me most.At that moment,I thought my father was a cold-blooded man who did not care about me at all.But things seemed different at my high school graduation ceremony(毕业典礼)where I was chosen to represent my class and give a speech.My father,once again,told me he had a business trip in a place outside the city and would be unable to show up(露面)"Don't come.I will be nervous if I see you."I told him.I remember my speech went smoothly.After the ceremony was over and I was about to leave,I suddenly noticed a familiar looking man sitting in a corner of the hall.It was my father!I was so surprised that I rushed to him with tears running down my face."Well done."he said.His eyes were also filled with tears.Later,I found out that my father had managed to finish his work by staying up late,and he drove for eight hours to get back.He had been sitting in the corner because he didn't want me to see him.My father remembered every word in my speech.For much of my life,I described my father was a cold-blooded man who only cared about his work.But when I thought deeply about this,it was obviously(明显地)not true.At my graduation ceremony,I could feel my father's deep love.The fact is that seeing is not believing,and seeing may not be the fact if we don't perceive(感知)the world with our hearts and minds.There's no doubt(疑问)that life doesn't lack(缺少)love,but sometimes our eyes have trouble seeing it.38.Which of the following is TRUE according to the passage?______A. The writer's father was in the hospital during her operation.B. The writer's father attended her high school graduation ceremony.C. The writer's father sometimes picked her up when she was in primary school.D. The writer's father went to parent-teacher meetings when she was in primary school.39.The writer rushed to her father with tears running down her face mainly because ______ .A. she gave a speech successfullyB. the graduation ceremony was overC. she was so nervous that she couldn't help cryingD. she was happy to find her father cared about her40.What does the underlined word"this"in the last paragraph refer to(指代)?______A. That my father was always doing projects.B. That my father was a cold-blooded man.C. That my father sat in the corner of the hall.D. That my father's eyes were filled with tears.41.What's the best title of the passage?______A. My busy father.B. Life is full of love.C. Seeing is not believing.D. A wonderful speech.【答案】。
常熟2016–2017学年初二(下)期末考试卷
数学
一、选择题本大题共10小题,每小题3分,共30分.在每小题给出的四个选项中.只有一项
是符合题目要求的,请将正确选项前的字母代号填在答题纸相应位置上........... 1.下列图形中,既是轴对称图形又是中心对称图形的是
2.下列调查中,适合采用普查的是 A.了解一批电视机的使用寿命
B.了解全省学生的家庭1周内丢弃塑料袋的数量
C.了解某校八(2)班学生每天用于课外阅读的时间
D.了解《最强大脑》收视率
3.
D. 4.下列事件中,属于必然事件的是 A.射击运动员射击一次,命中9环
B.掷一枚普通的正方体骰子,向上的一面出现的点数大于6
C.在同一年出生的13名学生中,至少有2人出生在同一个月
D.买一张电影票,座位号是偶数号 5.下列运算正确的是
3= = 5=- 2= 6.已知点12(1,),(3,)A y A y --都在反比例函数(0)k
y k x
=>的图像上,则1y 与2y 的大小关系为
A. 12y y >
B. 12y y <
C. 12y y =
D.无法确定 7.下列性质中,菱形具有而矩形不一定具有的是
A.对角线互相平分
B.对角线互相垂直
C.对边平行且相等
D.对角线相等 8.如图,ABC ∆中,D 、E 分别在AB 、AC 上,下列条件中不能判断ADE ACB ∆∆ 的是
A.ADE C ∠=∠
B.AED B ∠=∠
C.
AD AE AC AB = D.AD DE
AC BC
=
9.如图,在菱形ABCD 中,60,8.A AD P ∠=︒=是AB 边上的一点,,E F 分别是,DP BP 的中点,则线段EF 的长为
A. 8
B.
C. 4
D.
10.如图,已知点A 是反比例函数y x
=
在第一象限图像上的一个动点,连接OA ,以
为长,OA 为宽作矩形AOCB ,且点C 在第四象限,随着点A 的运动,点C 也
随之运动,但点C 始终在反比例函数k
y x
=
的图像上,则k 的值为
A. -
B.
C.
D. 二、填空题 本大题共8小题,每小题3分,共24分.把答案直接填在答题纸相对应位置上..............
11.x 的取值范围是 . 12.若
34a b =,则b
a b
+= . 13.如图,D 、E 分别在ABC ∆的边CA 、BA 的延长线上,且//DE BC ,若3,4A D D E ==,
8BC =,则DC = .
14.在一只不透明的袋子中装有红球和白球共20个,这些球除了颜色外都相同.将袋子中的球摇匀,从中任意摸出一个球,记下颜色后放回,通过多次试验后发现,摸到红球的频率稳定在30%,由此估计袋中有 个红球.
15.如图,小军在地面上合适的位置平放了一块平面镜(平面镜的高度忽略不计),刚好在平面镜中的点C 处看到旗杆顶部E ,此时小军的站立点B 与点C 的水平距离为2m ,旗杆底部D 与点C 的水平距离为12m.若小军的眼睛距离地面的高度为1. 5m(即AB =1. 5m),则旗杆的高度为 m.
16.如图,一次函数y kx b =+与反比例函数m
y x
=的图像交于A 、B 两点,其横坐标-4、1,则关于x 的不等式
m
kx b x
>+的解集为 . 17.如图,点F 在平行四边形ABCD 的边AB 上,且:1:2AF BF =,连接CF 并延长,交
DA 的延长线于点E ,若AEF ∆的面积为2,则平行四边形ABCD 的面积
为 .
18.如图,正方形ABCD 的两条对角线相交于点O .点E 是OC 的中点,连接DE ,过点A 作
A F D E ⊥于点F ,交OD 于点G .若正方形的边长为DF = . 三、解答题 本大题共10小题,共76分.把解答过程写在答题纸相对应的位置上............
,解答时应写出必要的计算过程、推演步骤或文字说明.作图时用2B 铅笔或黑色墨水签字笔.
19.(本题满分5分)计算:
20.(本题满分5分)计算: (3+
21.(本题满分6分)先化简,再求值:22
211
(1)22
x x x x x ++÷-++ ,其中x =
22.(本题满分7分)已知反比例函数k y x =
的图像经过点29(,)32
. (1)求k 的值,并判断点1(2,)6
A -是否在该反比例函数的图像上;
(2)该反比例函数图像在第 象限,在每个象限内,y 随x 的增大而 ; (3)当41x -<<-时,求y 的取值范围.
23.(本题满分8分)某报社为了了解市民“获取新闻的最主要途径”,开展了一次抽样调查,根据调查结果绘制了如下三种不完整的统计图表.
请根据图表信息解答下列问题:
(1)统计表中的m = ,n = ,并请补全条形统计图; (2)扇形统计图中“D ”所对应的圆心角的度数是 ;
(3)若该市约有120万人,请你估计其中将“电脑上网”和“手机上网”作为“获取新闻的最主要途径”的总人数.
24.(本题满分8分)如图,矩形ABCD 的对角线AC 、BD 相交于点0.过点A 作//AE BD ,交CB 的延长线于点E .
(1)求证:AC AE =;
(2)若120,8AOB AE ∠=︒=,求BC 的长.
25.(本题满分7分)如图,已知一次函数y kx b =+的图像与反比例函数m
y x
=
的图像交于点 (4,)A n 和点1
(,3)3
B n +,与y 轴交于点
C .
(1)求反比例函数和一次函数的表达式.
(2)若在x 轴上有一点D ,其横坐标是1,连接AD 、CD , 求ACD ∆的面积.
26.(本题满分10分)如图,在ABC ∆中,2,BC AB AD =是BC 边上的中线,O 是AD 中点,过点A 作//AE BC ,交BO 的延长线于点,E BE 交AC 于点F ,连接DE 交AC 于点G . (1)判断四边形ABDE 的形状,并说明理由; (2)
若AB =:2:3OA OB =
,求四边形
ABDE 的面积.
(3)连接DF ,求证:2
DF FG FC =⋅.
27.(本题满分10分)如图,已知点A 是反比例函数12
(0)y x x
=
>的图像上的一个动点,经过点A 的直线l 交x 轴负半轴于点B ,交y 轴正半轴于点C .过点C 作y 轴的垂线,交反比例函数的图像于点D .过点A 作AE x ⊥轴于点E ,交CD 于点F ,连接DE .设点A 的横坐标是a .
(1)若2BC AC =,求点D 的坐标(用含a 的代数式表示); (2)若3OC =,当四边形BCDE 是平行四边形时,求a 的值,并求出此时直线l 对应的函数表达式.
28.(本题满分10分)如图,在矩形ABCD 中,6,8AB BC ==,点P 从点C 出发,沿CB 向点B 匀速运动,速度为每秒1个单位,过点P 作PM BC ⊥,交对角线BD 于点M .点Q 从点B 出发,沿对角线BD 向点D 匀速运动,速度为每秒1个单位. P 、Q 两点同时出发,设它们的运动时间为t 秒(08t <<). (1)当PQ BD ⊥时,求出t 的值;
(2)连接AM ,当//PQ AM 时,求出t 的值; (3)试探究:当t 为何值时,PQM ∆是等腰三角形?。